Diana Shipping (DSX) 20-F 31 Mar 20 2019 FY Annual report (foreign) Financial data

Document and Entity Information

Document and Entity Information	12 Months Ended
	Dec. 31, 2019shares
Document And Entity Information [Abstract]
Document type	20-F
Document period end date	Dec. 31, 2019
Amendment flag	false
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity registrant name	DIANA SHIPPING INC.
Entity central index key	0001318885
Entity current reporting status	Yes
Entity voluntary filers	No
Current fiscal year end date	--12-31
Entity filer category	Accelerated Filer
Entity well known seasoned issuer	No
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity common stock shares outstanding	91,193,339
Entity Interactive Data Current	Yes
Entity Address, Country	MH
Title of 12(b) Security	Common Stock, $0.01 par value, Preferred Stock Purchase Rights, 8.875% Series B Cumulative Redeemable
Trading Symbol	DSX
Security Exchange Name	NYSE
Document Annual Report	true
Document Transition Report	false
Document Shell Company Report	false

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
CURRENT ASSETS:
Cash and cash equivalents (Note 2(e))	$ 107,288	$ 126,825
Accounts receivable, trade	7,862	2,948
Due from related parties	23	0
Inventories (Note 2(g))	5,526	5,835
Prepaid expenses and other assets	9,210	6,364
Vessel held for sale (Note 4)	7,130	0
Total current assets	137,039	141,972
FIXED ASSETS:
Vessels, net (Note 4)	882,297	991,403
Property and equipment, net (Note 5)	22,077	22,425
Total fixed assets	904,374	1,013,828
OTHER NON-CURRENT ASSETS:
Restricted cash (Notes 2(e) and 6)	21,000	24,582
Investments in related parties (Notes 2(v,x) and 3)	1,680	3,263
Other non-current assets	2,941	0
Deferred charges, net (Notes 2(m) and 4)	4,246	4,151
Total assets	1,071,280	1,187,796
CURRENT LIABILITIES:
Current portion of long-term debt, net of deferred financing costs, current (Note 6)	40,205	96,434
Accounts payable, trade and other	11,394	11,073
Due to related parties (Note 3)	85	182
Accrued liabilities	11,268	13,377
Deferred revenue	2,532	4,090
Total current liabilities	65,484	125,156
Long-term debt, net of current portion and deferred financing costs, non-current (Note 6)	434,746	434,113
Other non-current liabilities	986	843
Commitments and contingencies (Note 7)	0	0
STOCKHOLDERS' EQUITY:
Preferred stock (Note 8(a))	26	26
Common stock, $0.01 par value; 200,000,000 shares authorized and 91,193,339 and 103,764,351 issued and outstanding at December 31, 2019 and 2018, respectively (Note 8(b))	912	1,038
Additional paid-in capital	1,021,633	1,062,645
Accumulated other comprehensive income	109	287
Accumulated deficit	(452,616)	(436,312)
Total stockholders' equity	570,064	627,684
Total liabilities and stockholders' equity	$ 1,071,280	$ 1,187,796

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parentheticals) - $ / shares	Dec. 31, 2019	Dec. 31, 2018
CONSOLIDATED BALANCE SHEETS
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	200,000,000	200,000,000
Common Stock, Shares Issued	91,193,339	103,764,351
Common Stock, Shares Outstanding	91,193,339	103,764,351

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
REVENUES:
Time charter revenues (Note 2(p))	$ 220,728	$ 226,189	$ 161,897
EXPENSES:
Voyage expenses (Note 2(p))	13,542	7,405	8,617
Vessel operating expenses (Note 2(q))	90,600	95,510	90,358
Depreciation and amortization of deferred charges	48,904	52,206	87,003
General and administrative expenses	28,601	29,518	26,332
Management fees to related party (Note 3)	2,155	2,394	1,883
Impairment loss (Note 4)	13,987	0	442,274
Loss from sale of vessels (Note 4)	6,171	1,448	0
Insurance recoveries, net of other loss (Note 4)	0	0	(10,879)
Other (gain)/loss	(854)	(542)	296
Operating income/(loss)	17,622	38,250	(483,987)
OTHER INCOME / (EXPENSES):
Interest and finance costs (Note 9)	(29,432)	(30,506)	(26,628)
Interest and other income (Note 3(b))	2,858	8,822	4,508
Gain/(loss) from investments (Note 3(b) and 3(d))	(1,583)	14	(5,607)
Total other expenses, net	(28,157)	(21,670)	(27,727)
Net income/(loss)	(10,535)	16,580	(511,714)
Dividends on series B preferred shares (Notes 8 and 10)	(5,769)	(5,769)	(5,769)
Net income/(loss) attributed to common stockholders	$ (16,304)	$ 10,811	$ (517,483)
Earnings/(loss) per common share, basic and diluted	$ (0.17)	$ 0.1	$ (5.41)
Weighted average number of common shares, basic (Note 10)	95,191,116	103,736,742	95,731,093
Weighted average number of common shares, diluted (Note 10)	95,191,116	104,715,883	95,731,093

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME/(LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Income and Comprehensive Income [Abstract]
Net income/(loss)	$ (10,535)	$ 16,580	$ (511,714)
Other comprehensive income/(loss) (Actuarial income/(loss))	(178)	(7)	109
Comprehensive income/(loss)	$ (10,713)	$ 16,573	$ (511,605)

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY - USD ($) $ in Thousands	Total	Preferred StockPreferred Stock Series B	Preferred StockPreferred Stock Series C	Common Stock	Additional Paid-in Capital	Other Comprehensive Income / (Loss)	Retained Earnings/ (Accumulated Deficit)
Balance of shares at Dec. 31, 2016		2,600,000	0	84,696,017
Balance at Dec. 31, 2016	$ 1,056,589	$ 26	$ 0	$ 847	$ 985,171	$ 185	$ 70,360
Net income/(loss)	(511,714)						(511,714)
Issuance of new shares, shares (Note 8)				20,125,000
Issuance of new shares, value (Note 8)	77,311			$ 201	77,110
Issuance of restricted stock and compensation cost, shares (Note 8(f))				1,310,000
Issuance of restricted stock and compensation cost, value (Note 8(f))	8,232			$ 13	8,219
Dividends on series B preferred stock (Note 8(b))	(5,769)						(5,769)
Other comprehensive income/(loss)	109					109
Balance of shares at Dec. 31, 2017		2,600,000	0	106,131,017
Balance at Dec. 31, 2017	624,758	$ 26	$ 0	$ 1,061	1,070,500	294	(447,123)
Net income/(loss)	16,580						16,580
Stock repurchased and retired, shares (Note 8(e))				(4,166,666)
Stock repurchased and retired, value (Note 8(e))	(15,157)			$ (41)	(15,116)
Issuance of restricted stock and compensation cost, shares (Note 8(f))				1,800,000
Issuance of restricted stock and compensation cost, value (Note 8(f))	7,279			$ 18	7,261
Dividends on series B preferred stock (Note 8(b))	(5,769)						(5,769)
Other comprehensive income/(loss)	(7)					(7)
Balance of shares at Dec. 31, 2018		2,600,000	0	103,764,351
Balance at Dec. 31, 2018	627,684	$ 26	$ 0	$ 1,038	1,062,645	287	(436,312)
Net income/(loss)	(10,535)						(10,535)
Issuance of new shares, shares (Note 8)			10,675
Issuance of new shares, value (Note 8)	960				960
Stock repurchased and retired, shares (Note 8(e))				(14,571,012)
Stock repurchased and retired, value (Note 8(e))	(49,679)			$ (146)	(49,533)
Issuance of restricted stock and compensation cost, shares (Note 8(f))				2,000,000
Issuance of restricted stock and compensation cost, value (Note 8(f))	7,581			$ 20	7,561
Dividends on series B preferred stock (Note 8(b))	(5,769)						(5,769)
Other comprehensive income/(loss)	(178)					(178)
Balance of shares at Dec. 31, 2019		2,600,000	10,675	91,193,339
Balance at Dec. 31, 2019	$ 570,064	$ 26	$ 0	$ 912	$ 1,021,633	$ 109	$ (452,616)

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash Flows from Operating Activities:
Net income/(loss)	$ (10,535)	$ 16,580	$ (511,714)
Adjustments to reconcile net income/(loss) to net cash from operating activities:
Depreciation and amortization of deferred charges	48,904	52,206	87,003
Impairment loss (Note 4)	13,987	0	442,274
Amortization of financing costs (Note 9)	1,126	1,939	1,455
Compensation cost on restricted stock (Note 8)	7,581	7,279	8,232
Actuarial gain/(loss)	(178)	(7)	109
Loss from sale of vessels (Note 4)	6,171	1,448	0
Gain from loan to a related party (Note 3)	0	(5,000)	0
Gain from insurance recoveries, net of other loss (Note 4)	0	0	(10,879)
Loss from extinguishment of liabilities	188	0	0
Loss/(gain) from investments (Note 3)	1,583	(14)	5,607
(Increase) / Decrease in:
Accounts receivable, trade	(4,914)	1,989	966
Due from related parties	(23)	43	(141)
Inventories	309	(65)	90
Prepaid expenses and other assets	(2,846)	(1,197)	142
Other non-current assets	(2,941)	0	0
Increase / (Decrease) in:
Accounts payable, trade and other	321	3,119	1,382
Due to related parties	(97)	(89)	246
Accrued liabilities, net of accrued preferred dividends	(2,109)	5,131	2,512
Deferred revenue	(1,558)	883	2,385
Other non-current liabilities	143	(59)	162
Drydock costs	(5,230)	(4,256)	(6,418)
Net cash provided by Operating Activities	49,882	79,930	23,413
Cash Flows from Investing Activities:
Payments for vessel acquisitions, improvements and construction (Note 4)	(2,804)	(2,573)	(125,781)
Proceeds from vessel sales, net of expenses (Note 4)	41,326	14,578	2,032
Proceeds from insurance contract, net of expenses (Note 4)	0	0	11,362
Proceeds from sale of investment	0	0	158
Loan to a related party (Note 3(b))	0	0	(40,000)
Proceeds from loan to a related party (Note 3(b))	0	87,617	0
Payments for plant, property and equipment (Note 5)	(125)	(252)	(104)
Net cash provided by / (used in) Investing Activities	38,397	99,370	(152,333)
Cash Flows from Financing Activities:
Proceeds from long-term debt (Note 6)	44,000	100,000	57,240
Proceeds from issuance of stock, net of expenses (Note 8(c) and (d))	960	0	77,311
Cash dividends on preferred stock	(5,769)	(5,769)	(5,769)
Payments for repurchase of common stock (Note 8(e))	(49,679)	(15,157)	0
Financing costs	(357)	(2,833)	(31)
Loan payments (Note 6)	(100,553)	(169,943)	(55,164)
Net cash provided by / (used in) Financing Activities	(111,398)	(93,702)	73,587
Net increase / (decrease) in cash, cash equivalents and restricted cash	(23,119)	85,598	(55,333)
Cash, cash equivalents and restricted cash at beginning of the year	151,407	65,809	121,142
Cash, cash equivalents and restricted cash at end of the year	128,288	151,407	65,809
RECONCILIATION OF CASH, CASH EQUIVALENTS AND RESTRICTED CASH
Cash and cash equivalents	107,288	126,825	40,227
Restricted cash	21,000	24,582	25,582
Cash, cash equivalents and restricted cash at end of the year	128,288	151,407	65,809
SUPPLEMENTAL CASH FLOW INFORMATION
Related party loan reduction in exchange for preferred shares (Note 3(b))	0	0	3,000
Interest, net of amounts capitalized	$ 28,554	$ 25,683	$ 24,503

Basis of Presentation and Gener

Basis of Presentation and General Information	12 Months Ended
	Dec. 31, 2019
Basis of Presentation and General Information [Abstract]
Basis of Presentation and General Information	1 . Basis of Presentation and General Information The accompanying consolidated financial statements include the ac counts of Diana Shipping Inc., or DSI , and its wholly-owned and beneficially-owned subsidiaries (collectively, the “Company”). DSI was formed on March 8, 1999 as Diana Shipping Investment Corp. under the laws of the Republic of Liberia. In February 2005, the Company’s articles of incorporation were amended. Under the amended articles of incorporation, the Company was renamed Diana Shipping Inc. and was re - domiciled from the Republic of Liberia to the Republic of the Marshall Islands. The Company is engaged in the ocean transportation of dry bulk cargoes worldwide through the ownership of dry bulk carrier vessels. The Company opera tes its own fleet through Diana Shipping Services S.A. (or “DSS”), a wholly-owned subsidiary and through Diana Wilhelmsen Management Limited, or DWM, a 50% owned joint venture (Note 3 ). The fees paid to DSS are eliminated in consolidation. During 2019 , 2018 , and 2017 , charterers that individually accounted for 10% or more of the Company’s time charter revenues were as follows: Charterer 2019 2018 2017 A 18% 16% 14% B 16% 14% 12% C 14% 15% 17% D 12% 10%

Significant Accounting Policies

Significant Accounting Policies and Recent Accounting Pronouncements	12 Months Ended
	Dec. 31, 2019
Significant Accounting Policies and Recent Accounting Pronouncements [Abstract]
Significant Accounting Policies	2 . Significant Accounting Policies a) Principles of Consolidation : The accompanying consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles, and include the accounts of Diana Shipping Inc. and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated upon consolidation. Under Accounting Standards Codification (“ASC”) 810 “Consolidation”, the Company consolidates entities in which it has a c ontrolling financial interest, by first considering if an entity meets the definition of a variable interest entity ("VIE") for which the Company is deemed to be the primary beneficiary under the VIE model, or if the Company controls an entity through a ma jority of voting interest based on the voting interest model. The Company evaluates financial instruments, service contracts, and other arrangements to determine if any variable interests relating to an entity exist. For entities in which the Company has a variable interest, the Company determines if the entity is a VIE by considering whether the entity’s equity investment at risk is sufficient to finance its activities without additional subordinated financial support and whether the entity’s at-risk equit y holders have the characteristics of a controlling financial interest. In performing the analysis of whether the Company is the primary beneficiary of a VIE, the Company considers whether it individually has the power to direct the activities of the VIE t hat most significantly affect the entity’s performance and also has the obligation to absorb losses or the right to receive benefits of the VIE that could potentially be significant to the VIE. The Company reconsiders the initial determination of whether a n entity is a VIE if certain types of events (“reconsideration events”) occur. I f the Company holds a variable interest in an entit y that previously was not a VIE, it reconsiders whether the entity has become a VIE. The Company has identified that it has v ariable interests in Performance Shipping Inc., (or “Performance Shipping”) and Diana Wilhelmsen Management Limited. The Company has assessed that Performance Shipping is a VIE since 2017 but the Company is not the primary beneficiary (Note 3 (b) ). b) Use of Estimates: The preparation of consolidated financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilit ies and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. c) Other Compreh ensive Income / ( L oss): The Company separately presents certain transactions, which are recorded directly as components of stockholders’ equity. Other Comprehensive Income / (Loss) is presented in a separate statement. d) Foreign Currency Translation: The functional currency of the Company is the U.S. d ollar because the Company’s vessels operate in international shipping markets, and therefore primarily transact business in U.S. d ollars. The Company’s accounting records are maintained in U.S. d ollars. Tran sactions involving other currencies during the year are converted into U.S. d ollars using the exchange rates in effect at the time of the transactions. At the balance sheet dates, monetary assets and liabilities which are denominated in other currencies ar e translated into U.S. d ollars at the year-end exchange rates. Resulting gains or losses are reflected separately in the accompanying consolidated statements of operations. e) Cash and Cash Equivalents and Restricted Cash : The Company considers highly li quid investments such as time deposits, certificates of deposit and their equivalents with an original maturity of three months or less to be cash equivalents. Restricted cash consists mainly of cash deposits required to be maintained at all times under the Company’s loan facilities (Note 6 ). As of December 31, 2018 , restricted cash also included $582 of cash guarantee which was restricted to withdrawal or usage and was released in November 2019. f) Accounts Receivable, Trade: The amount shown as accounts receivable, trade, at each balance sheet date, includes receivables from charterers for hire, net of any provision for doubtful accounts. At each balance sheet date, all potentially uncollectible accounts are assessed individually for purposes of determining the appropriate provision for doubtful accounts. No provision for doubtful accounts was established as of December 31, 2019 and 2018 . g) Inventories : Inventories consist of lubricants and victualling which are stated at the lower of co st or net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. When evidence exists that the net realizable value of invent ory is lower than its cost, the difference is recognized as a loss in earnings in the period in which it occurs. Cost is determined by the first in, first out method. Inventories may also consist of bunkers when on the balance sheet date a vessel remains i dle. Bunkers , if any, are also stated at the lower of cost or net realizable value and cost is determined by the first in, first out method. h) Vessel Cost : Vessels are stated at cost which consists of the contract price and any material expenses incurred upon acquisition or during construction. Expenditures for conversions and major improvements are also capitalized when they appreciably extend the life, increase the earning capacity or improve the efficiency or safety of the vessels; otherwise these amou nts are charged to expense as incurred. Interest cost incurred during the assets' construction periods that theoretically could have been avoided if expenditure for the assets had not been made is also capitalized. The capitalization rate, applied on accum ulated expenditures for the vessel, is based on interest rates applicable to outstanding borrowings of the period. i) Vessels held for sale: The Company classifies assets as being held for sale when the respective criteria are met. Long-lived assets or di sposal groups classified as held for sale are measured at the lower of their carrying amount or fair value less cost to sell. These assets are not depreciated once they meet the criteria to be held for sale. j ) Property and equipment: The Company owns t he land and building where its offices are located. Land is stated at cost and it is not subject to depreciation. The building has an estimated useful life of 55 years with no residual value. Depreciation is calculated on a straight-line basis. Equipment consists of office furniture and equipment, computer software and hardware and vehicles which consist of motor scooters and a car . The useful life of the car is 10 years, of the office furniture, equipment and the scooters is 5 years; and of the computer software and hardware is 3 years. Depreciation is calculated on a straight-line basis. k ) Impairment of Long-Lived Assets: Long-lived assets (vessels, land, and building) and certain identifiable intangibles held and used by an entity are reviewed for impairment whenever events or changes in circumstances (such as market conditions, obsolesce or damage to the asset, potential sales and other business plans) indicate that the carrying amount of the assets , plus unamortized dry-docking costs , may not be recoverable. When the estimate of undiscounted projected net operating cash flows, excluding interest charges, expected to be generated by the use of the asset over its remaining useful life and its eventual disposition is less than its carrying amount, the Company should evaluate the asset for impairment loss. Measurement of the impairment loss is based on the fair value of the asset. The Company determines the fair value of its assets based on management estimates and assumptions , by making use of available market data and taking into consideration third party valuations. With respect to the vessels, the Company determines undiscounted projected net operating cash flows for each vessel by considering the historical and estimated vessels’ performance and utiliz ation, assuming (i) future revenues calculated for the fixed days, using the fixed charter rate of each vessel from existing time charters and for the unfixed days, the most recent 10 year average of historical 1 year time charter rates available for each type of vessel over the remaining estimated life of each vessel, net of commissions. Historical ten-year blended average one-year time charter rates are in line with the Company’s overall chartering strategy, they reflect the full operating history of vess els of the same type and particulars with the Company’s operating fleet and they cover at least a full business cycle, where applicable; (ii) expected outflows for scheduled vessels’ maintenance; (iii) vessel operating expenses; and (iv) fleet utilization; assumptions in line with the Company’s historical performance and its expectations for future fleet utilization under its current fleet deployment strategy. During the last quarter of 2017, the Company’s management considered various factors, including the recovery of the market, the worldwide demand for dry-bulk products, supply of tonnage and order book and concluded that the charter rates for the years 2008-2010 were exceptional . In this respect the Company’s management decided to exclude from the 10- year average of 1 year time charters these three years for which the rates were well above the average and which were not considered sustainable for the foreseeable future. Similarly, t he Company performed the exercise discussed above , for 2018 , by excluding from the 10-year aver age of 1 year time charters the y ears 2009-2010 and for 2019 , by excluding the rates for the year 2010. This exercise resulted to recording impairment on certain vessels’ carrying value in 2017 and 2019 (Note 4 ) . No impairme nt loss was identified or recorded for 2018 . With respect to the land and building, the Company determines undiscounted projected net operating cash flows by considering an estimated monthly rent the Company would have to pay in order to lease a similar property, during the useful life of the building. N o impairment loss was identified or recorded for 2019 , 2018 and 2017 and the Company has not identi fied any other facts or circumstances that would require the write down of the value of its land or building in the near future. l ) Vessel Depreciation: Depreciation is computed using the straight-line method over the estimated useful life of the vessels, after considering the estimated salvage (scrap) value. Each vessel’s salvage value is equal to the product of its lightweight tonnage and estimated scrap rate. Management estimates the useful life of the Company’s vessels to be 25 years from the date of initial delivery from the shipyard. Second hand vessels are depreciated from the date of their acquisition through their remaining estimated useful life. When regulations place limitations over the ability of a vessel to trade on a worldwide basis, its remaining useful life is adjusted at the date such regulations are adopted . m ) Accounting for Dry-Docking Costs : The Company follows the deferral method of accounting for dry-docking costs whereby actual costs incurred are deferred and are amortized on a straight-line basis over the period through the date the next dry-docking is scheduled to become due. Unamortized dry-docking costs of vessels that are sold or impaired are written off and included in the calculation of the resulting gain or loss in the year of the vessel’s sale or impairment (Note 4 ) . n ) Financing Costs : Fees paid to lenders for obtaining new loans or refinancing existing ones are deferred and recorded as a contra to debt. Other fees paid for obtaining loan facilities not used at the balance sheet date are deferred. Fees relating to drawn loan facilities are amortized to interest and finance costs over the life of the related debt using the effective interest method and fees incurred for loan facilities not used at the balance sheet date are amortized using the straight line method according to their availability terms. Unamortized fees relating to loans repaid or refinanced as debt extinguishment are expensed as interest and finance costs in the period the repayment or extinguishment is made. Loan commitment fees are charged to expense in the period incurred, unless they relate to loans obtained to finance vessels under construction, in which case they are capitalized to the vessels’ cost. o ) Concentration of Credit Risk : Financial instruments, which potentially subject the Company to significant concentrations of credit risk, consist principally of cash and trade accounts receivable. The Company places its temporary cash investments, consisting mostly of deposits, with various qualified financial institutions and performs periodic evaluations of the relative credit standing of those financial institutions that are considered in the Company’s investment strategy. The Company limits its credit risk with accounts receivable by performing ongoing credit evaluations of its customers’ financial condition and generally does not require collateral for its accounts receivable and does not have any agreements to mitigate credit risk. p ) Accounting for Revenues and Expenses : Revenues are generated from time charter agreements which contain a lease as they meet the criteria of a lease under ASC 842. Agreements with the same charterer are accounted for as separate agreements according to their specific terms and conditions. All agreements contain a minimum non-cancellable period and an extension period at the option of the charterer. Each lease term is assessed at the inception of that lease. Under a time charter agreement, the charterer pays a daily hire for the use of the vessel and reimburses the owner for hold cleanings, extra insurance premi ums for navigating in restricted areas and damages caused by the charterers. Additionally, the charter er pays to third parties port, canal and bunkers consumed during the term of the time charter agreement. Such costs are considered direct costs and are not recorded as they are directly paid by charterers, unless they are for the account of the owner, in which case they are included in voyage expenses. Additionally, the owner pays commissions on the hire revenue, to both the charterer and to brokers, which are direct costs and are recorded in voyage expenses. Under a time charter agreement, the owner pays for the operation and the maintenance of the vessel, including crew, insurance, spares and repairs, which are recognized in operating expenses. The Company , as lessor, has elected not to allocate the consideration in the agreement to the separate lease and non-lease components (operation and maintenance of the vessel) as their timing and pattern of transfer to the charterer, as the lessee , are the same and the lease component, if accounted for separately, would be classified as an operating lease. Additionally, th e lease component i s considered the predominant component as th e Company has assessed that more value is ascribed to the vessel rather than to the services provided under the time charter contracts . The majority of the vessels are employed on short to medium-term time charter contracts, which provides flexibility in responding to market developments. The Company monitor s developments in the dry bulk shipping industry on a regular basis and adjust s the charter hire periods for the vessels according to prevailing market conditions. In order to take advantage of relatively stable cash flow and high utilization rates, some of the vessels may be fixed on long-term time charters. q ) Repairs and Maintenance: All repair and maintenance expenses including underwater inspection expenses are expensed in the year incurred. Such costs are included in vessel operating expenses in the accompanying consolidated statements of operations. r ) Earnings / (loss) per Common Share: Basic earnings / (loss) per common share are computed by dividing net income / (loss) available to common stockholders by the weighted average number of common shares outstanding during the year. Diluted earnings per common share, reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised. s ) Segmental Reporting: The Company engages in the operation of dry-bulk vessels which has been identified as one reportable segment. The operation of the vessels is the main source of revenue generation , the services provided by the vessels are similar and they all operat e under the same economic environment . Additionally, the vessels do not operate in specific geographic areas , as they trade worldwide; they do not trade in specific trade routes, as their trading (route and cargo) is dictated by the charterers; and t he Company does not evaluate the operating results for each type of dry bulk vessel s (i.e. P anamax, C apesize etc.) for the purpose of making decisions about allocating resources and assessing performance. t ) Fair Value Measurements : T he Company classifies and discloses its assets and liabilities carried at fair value in one of the following categories: Level 1: Quoted market prices in active markets for identical assets or liabilities; Level 2: Observable market based inputs or unobservable inputs that are corroborated by market data; Level 3: Unobservable inputs that are not corroborated by market data. u ) Share Based Payments: The Company issues restricted share awards which are measured at their grant date fair value and are not subsequently re - measured. That cost is recognized over the period during which an employee is required to provide service in exchange for the award—the requisite service period (usually the vesting period). No compensation cost is recognized for equity instruments for which employees do not render the requisite service. Forfeitures of awards are accounted for when and if they occur. If an equity award is modified after the grant date, incremental compensation cost will be recognized in an amount equal to the excess of the fair value of the modified award over the fair value of the original award immediately before the modification. v ) Equity method investments: Investments in common stock in entities over which the Company exercises significant influence, but does not exercise control are accounted for by the equity method of accounting. Under this method, the Company records such an investment at cost and adjusts the carrying amount for its share of the earnings or losses of the entity subsequent to the date of investment and reports the recognized earnings or losses in income. Dividends received , if any, reduce the carrying amount of the investment. When the Company’s share of losses in an entity accounted for by the equity method equals or exceeds its interest in the entity, the Company does not recognize further losses, unless the Company has made advances, incurred obligations and made payments on behalf of the entity. The Company also evaluates whether a loss in value of an investment that is other than a temporary decline should be recognized. Evidence of a loss in value might include absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity that would justify the carrying amount of the investment. T he Company assessed the financial condition of Performance Shipping (Note 3 (b)) , the market conditions that could affect its operations in the near future and historical losses of its investment and as a result the Company recorded impairment in 2017, which is included in Gain/(loss) from equity method investments in the accompanying statements of operations. w ) Going concern: M anagement evaluate s, at each reporting period, whether there are conditions or events that raise substantial doubt about the C ompany's ability to continue as a going concern within one year from the date the financial statements are issued. x ) Financial Instruments, Recognition and Measurement: Equity securities with no determinable value, such as the Company’s investment in Performance Shipping (Note 3 (b) ) are recorded at their cost and they are assessed for impairment, in accordance with ASU 2016-01 Financial Instruments-Overall, Recognition and Measurement of Financial Assets and Financial Liabilities . The Company accounts for its investment at cost minus impairment, unless it determines that an observable transaction for a similar security took place, as determined in ASU 2018-03 Technical Corrections and Improvements to Financial Instruments – Overall. As at December 31, 2019 the Company assess ed the voting rights held by the shareholders of Performance Shipping compared to the voting rights held by t he Company . Based on the fact that the shareholders of Performance Shipping increased their voting power , the Company’s voting power would be limited if not required. Based on this assessment, the Company determined that the carrying value of the investment may not be recoverable and recorded impairment (Note 3 (b)). For 2018 , no impairment was recognized. y ) Shares repurchased and retired: Company’s shares repurchased for retirement, are immediately cancelled and the Company’s share capital is accordingly reduced. Any excess of the cost of the shares over their par value is allocated in additional paid-in capital, in accordance with ASC 505-30-30, Treasury Stock.
Recent Accounting Pronouncements not yet adopted	Recent Accounting Pronouncements not yet adopted On August 2018, the FASB issued ASU No. 2018-13, “Fair Value Measurement (Topic 820)—Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement”, which improves the effectiveness of fair value measurement disclosures. In particular, the amendments in this Update modify the disclosure requirements on fair value measurements in Topic 820, Fair Value Measurement, based on the concepts in FASB Concepts Statement, Conceptual Framework for Financial Reporting—Chapter 8: Notes to Financial Statements, including the consideration of costs and benefits. The amendments in the Update apply to all entities that are required under existing GAAP, to make disclosures about recurring and non-recurring fair value measurements. ASU No. 2018-13 is effective for annual periods, including interim periods within those annual periods, beginning after December 15, 2019. The amendments on changes in unrealized gains and losses, the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements, and the narrative description of measurement uncertainty should be applied prospectively for only the most recent interim o r annual period presented in the initial fiscal year of adoption. All other amendments should be applied retrospectively to all periods presented upon their effective date. Early adoption is permitted upon issuance of this Update. An entity is permitted to early adopt any removed or modified disclosures upon issuance of this Update and delay adoption of the additional disclosures until their effective date. The Company has assessed the impact of this new accounting guidance and the adoption of this ASU does not have a material impact on its consolidated financial statements and related disclosures. On October 2018, the FASB issued ASU No. 2018-17, “Consolidation (Topic 810)—Targeted Improvements to Related Party Guidance for Variable Interest Entities”. The Board is issuing this Update in response to stakeholders’ observations that Topic 810, Consolidation, could be improved in the following areas: i) applying the variable interest entity (VIE) guidance to private companies under common control, ii) consider ing indirect interests held through related parties under common control for determining whether fees paid to decision makers and service providers are variable interests. The amendments in this Update improve the accounting for those areas, thereby improv ing general purpose financial reporting. ASU No. 2018-17 is effective for annual periods, including interim periods within those annual periods, beginning after December 15, 2019. All entities are required to apply the amendments in this Update retrospecti vely with a cumulative-effect adjustment to retained earnings at the beginning of the earliest period presented. Early adoption is permitted. The Company has assessed the impact of this new accounting guidance and the adoption of this ASU does not have a material impact on its consolidated financial statements and related disclosures. In April 2019, the FASB issued ASU 2019-04, Codification Improvements to Topic 326, Financial Instruments Credit Losses, Financial Instruments—Credit Losses, Topic 815, Der ivatives and Hedging, and Topic 825 Financial Instruments, the amendments of which clarify the modification of accounting for available for sale debt securities excluding applicable accrued interest, which must be individually assessed for credit losses wh en fair value is less than the amortized cost basis. In May 2019, the FASB issued ASU 2019-05, Financial Instruments—Credit Losses (Topic 326)—Targeted Transition Relief, which is the final version of Proposed Accounting Standards Update 2019-100—Targeted Transition Relief for Topic 326, Financial Instruments—Credit Losses, which has been deleted. This Update provides entities with an option to irrevocably elect the fair value option applied on an instrument-by-instrument basis for certain financial assets upon the adoption of Topic 326. The fair value option election does not apply to held-to-maturity debt securities. The effective date and transition requirements for the amendments in these Updates are the same as the effective dates and transition require ments in Update 2016-13, as amended by these Updates. The Company has assessed the impact of this new accounting guidance and the adoption of this ASU does not have a material impact on its consolidated financial statements and related disclosures.

Transactions with Related Parti

Transactions with Related Parties	12 Months Ended
	Dec. 31, 2019
Transactions wtih Related Parties [Abstract]
Transactions with related parties	3 . Transactions with related parties a) Altair Travel Agency S.A. (“Altair”): The Company uses the services of an affiliated travel agent, Altair, which is controlled by the Company’s CEO and Chairman of the Board. Travel expenses for 2019 , 2018 and 2017 amounted to $2,032 , $2,253 and $2,096 , respectively, and are mainly included in “Vessels, net book value”, “Vessel operating expenses” and “General and administrative expenses” in the accompanying consolidated financial statements. At December 31 , 2019 and 2018 , an amount of $30 and $63 , respectively, was payable to Altair and is included in “Due to related parties” in the accompanying consolidated balance sheets. b) Performance Shipping Inc., or Performan ce Shipping : In 2017, the Company gradually sold all shares owned in the common stock of Performance Shipping , which was an equity method investee until then, realizing an aggregate loss of $757 from the sale of such shares. For 20 17, the investment in Performance resulted in loss of $5,656 (including the loss from the sale of shares) of which $3,124 was impairment, which was recorded based on Performance Shipping ’s market value on Nasdaq at the date of impairment charge recognition. The los s and impairment are included in the 2017 “Gain/(loss) from investments” in the accompanying consolidated statements of operations. On June 30, 2017, DSI refinanced an existing loan amounting to $42,617, at that date, by entering into a new loan facility with Performance Shipping amounting to $82,617. The loan also provided for an additional $5,000 interest-bearing discount premium payable on the termination date, unless waived according to certain terms of the loan agreement. The loan was collected in full in Jul y 2018, including the additional $5,000 interest-bearing discount premium. The loan bore interest at the rate of 6% per annum for the first twelve months, scaled to 9% until full repayment. The loan facility was secured by first preferred mortgages on Performance Shipping ’s vessels and included financial and other covenants. For 2018 and 2017 , interest and other income amounted to $7,055 (including the $5,000 additional discount premium) and $3,855 , respectively, and is included in “Interest and other income” in the accompanying consolidated statement of operations. On May 30, 2017, the Company acquired 100 shares of Series C Preferred Stock, par value $0.01 per share, of Performance Shipping , for $3,000 in exchange for a re duction of an equal amount in the principal amount of the Company’s outstanding loan to Performance Shipping at that date. The Series C Preferred Stock has no dividend or liquidation rights and votes with the common shares of Performance Shipping , if any. Each share of the Series C Preferred Stock entitles the holder thereof to up to 250,000 votes, subject to a cap such that the aggregate voting power of any holder of Series C Preferred Stock together with its affiliates does not exceed 49.0%, on all matters submitted to a v ote of the stockholders of Performance Shipping . The acquisition of shares of Series C Preferred Stock was approved by an independent committee of the Board of Directors of the Company. The Company has assessed that Performance Shipping is a VIE due to this transaction, but the Company is not the primary beneficiary. The Company’s exposure to Performance Shipping is limited to the amount of the investment. At December 31 , 2019 the investment in the preferred shares of Performance Shipping was reduced to $1,500 from $3,000 , at December 31 , 2018 , and is included in “Investments in related parties” in the accompanying consolidated balance sheets. This reduction which is included in the 2019 “Gain/(loss) from investments” was made due to management’s qualitative assessment that the carrying value of the investment may not be recoverable (Note 13 ). c) Steamship Shipbroking Enterprises Inc. or Steamship: Steamship is a company controlled by the Company’s CEO and Chairman of the Board which provides brokerage services to DSI pursuant to a Brokerage Services Agreement for a fixed fee amended annually on each anniversary of the agreement with the exception o f an amendment in November 21, 2018, to increase the fee from October 1, 2018 until expiration of the agreement in March 2019. The new agreement signed on April 1, 2019 for one year maintained the fee at the same level. For 2019 , 2018 and 2017 br okerage fees amounted to $1,998 , $1,850 and $1,800 , respectively, and are included in “General and administrative expenses” in the accompanying consolidated statements of operations. As of December 31 , 2019 an d 2018 , there was no amount due to Steamship. d) Diana Wilhelmsen Management Limited, or DWM: DWM is a joint venture which was established on May 7, 2015 by Diana Ship Management Inc., a wholly owned subsidiary of DSI, and Wilhelmsen Ship Management H olding Limited, an unaffiliated third party, each holding 50% of DWM. The DWM office is located in Limassol, Cyprus. As at December 31 , 2019 and 2018 , the equity method investment in DWM amounted to $180 and $263 , respe ctively, and is included in “Investments in related parties” in the accompanying consolidated balance sheets. F or 2019 , 2018 and 2017 , the investment in DWM resulted in a loss of $83 and gain of $14 and $49 , respectively, and is included in “Gain/(loss) from equity method investments” in the accompanying consolidated statements of operations. Until October 8, 2019, DWM provided management services to certain vessels of the Company’s fleet for a fixed monthly fee and commercial services charged as a percentage of the vessels’ gross revenues pursuant to management agreements between the vessels and DWM. Since October 8, 2019, all of the fleet vessels are manage d by DSS an d DSS outsourced the management of certain vessels to DWM. For the management services outsourced to DWM, DSS pays a fixed monthly fee per vessel and a percentage of those vessels’ gross revenues. Management fees paid to DWM for 2019 , 2018 and 2017 amounted to $2,155 , $2,394 and $1,883 , respectively, and are separately presented as “Management fees to related party” in the accompanying consolidated statements of operations. Commercial fees until October 9, 2019, amounted to $353 , $453 and $260 , respectively, and are included in “Voyage expenses”. As at December 31 , 2019 and 2018 , there was an amount of $55 and $119 , respecti vely, due to DWM, included in “Due to related parties” in the accompanying consolidated balance sheets. e ) Series C Preferred Stock : On January 31, 2019, DSI issued 10,675 shares of its newly-designated Series C Preferred Stock, par value $0.01 per share, to an affiliate of its Chairman and Chief Executive Officer, Mr. Simeon Palios, for an aggregate purchase price of $1,066 (Note 8 ). f) Sale of Vessels: On February 14 and February 15, 2019, the Company through two separate wholly-owned subsidiaries entered into two Memoranda of Agreement to sell the vessels Danae and Dione to two affiliated parties, for a purchase price of $7,200 each (Note 4 ).

Vessels

Vessels	12 Months Ended
	Dec. 31, 2019
Vessels [Abstract]
Vessels	4 . Vessels Vessel Disposals In November 2018, the Company entered into two Memoranda of Agreement with two unrelated third party companies to sell the vessel Triton , for a total consideration of $7,350 and the vessel Alcyon , for a total consideration of $7,450. Both vessels were delivered to their new owners in December 2018. The aggregate loss from the vessels’ sale, including unamortized deferred drydocking costs, amounted to $1,448 and is reflected in “Loss from sale of v essels” in the related accompanying consolidated statement of operations. On February 14 and February 15, 2019 , the Company through two separate wholly-owned subsidiaries entered into two Memoranda of Agreement to sell the vessels Danae and Dione to two a ffiliated parties, for a purchase price of $7,200 each. The transaction was approved by disinterested directors of the Company and the agreed upon sale price was based, among other factors, on independent third-party broker valuations obtained by the Compa ny. Both vessels were delivered to their new owners in April 2019. On April 12, 2019, the Company through a separate wholly-owned subsidiary entered into a Memorandum of Agreement to sell to an unaffiliated third party the vessel Erato , for a sale price of $7,000 before commissions. The vessel was delivered to her new owners in June 2019. On June 13, 2019, the Company through a separate wholly-owned subsidiary entered into a Memorandum of Agreement to sell to an unaffiliated third part y the vessel Thetis , for a sale price of $6,400 before commissions. The vessel was delivered to her new owners in July 2019. On July 25, 2019, the Company through a separate wholly-owned subsidiary entered into a Memorandum of Agreement to sell to an unaf filiated third party, the vessel Nirefs , for a sale price of $6,710 before commissions. The vessel was delivered to her new owners in September 2019. On November 7, 2019, the Company through a separate wholly-owned subsidiary entered into a Memorandum of Agreement to sell to an unaffiliated third party the vessel Clio , for a sale price of $7,400 before commissions. The vessel was delivered to her new owners in November 2019. On December 24, 2019, the Company through a separate wholly-owned subsidiary ente red into a Memorandum of Agreement to sell to an unaffiliated third party the vessel Calipso , for a sale price of $7,275 before commissions. On December 31, 2019, the vessel was measured at the lower of her carrying amount or fair value less costs to sell and was classified in current assets as Vessel held for sale, according to the provisions of ASC 360, as all criteria required for this classification were then met. The vessel was expected to be delivered to the new owners in January 2020 , but in February 2020 the sale was cancelled (Note 13 ) . This cancellation does not affect the classification of the vessel as held for sale on December 31, 20 19, according to the provisions of ASC 360 . The sale of Danae , Dione , Thetis and Calipso resulted to an aggregate impairment of $10,567 , including the write off of the unamortized drydocking costs of $1,102 , as the vessels were measured at the lower of their carrying value and fair value (sale price) less costs to sell (Note 12 ) , result ing from their classification as held for sale and is included in “Impairment loss ” in the accompanying 2019 statement of operations. Additionally, the Company recorded a n aggregate loss from the sale of vessels amounting to $6,171 , separa tely presented in the accompanying 2019 statement of operations. Impairment Loss On July 25, 2017, the Melite run aground at Pulau Laut, Indonesia. Following this incident, on September 21, 2017, the owners served a notice of frustration of the voyage to the time-charterers and a notice of abandonment to the H&M and IV insurers as it was considered that the exten t of damages and the estimated cost of repairs were such that the vessel constituted a constructive total loss. As of September 30, 2017, the vessel’s net book value was reduced to its scrap value of $2,515 resulting in an impairment of $19,807 which is in cluded in “Impairment loss”, in the 2017 accompanying consolidated statement of operations. The vessel, which was insured for a value of $14,000 to H&M insurers, was sold to an unrelated third party at the recorded price in October 2017, and in November 20 17, the Company received the balance of the insured value of the vessel amounting to $11,528, which is included in “Insurance recoveries, net of other loss” in the accompanying statement of operations. As at December 31, 2017, the Company’s estimated undiscounted projected net operating cash flows, excluding interest charges, expected to be generated by the use of certain vessels over their remaining useful lives and their eventual disposition was less than their carrying amount plus any unamortized dr y-docking costs. This exercise resulted to recording impairment loss on certain vessels’ carrying value of an aggregate amount of $422,466, which is included in “Impairment loss” in the 2017 accompanying consolidated statement of operations of which $3,36 2 was written down from unamortized deferred drydocking costs. The fair value of the vessels was determined through Level 2 inputs of the fair value hierarchy by taking into consideration third party valuations which were based on the last done deals of sa le of vessels with similar characteristics, such as type, size and age (Note 12 ). Similarly, as at December 31, 2019, the Company’s estimated undiscounted projected net operating cash flows, excluding interest charges, expected to be generated by the use of three vessels over their remaining useful lives and their eventual disposition was less than their carrying amount. This resulted to impairment loss, net loss and net loss attributed to common stock holders of $3,419 , or $0.04 per share, consisting of $2,386 of vessels’ net book value and $1,033 of deferred drydocking costs, both included in “Impairment loss ” in the accompanying 2019 statement of operations . T he fair value of two vessels was determined through Level 2 inputs of the fair value hierarchy by taking into consideration third party valuations and for the one vessel which was subsequently sold (Note 13 ), the fair value was determined through Level 1 inputs of the fair value hierarchy (Note 12 ). The amounts reflected in Vessels, net in the accompanying consolidated balance sheets are analyzed as follows: Vessel Cost Accumulated Depreciation Net Book Value Balance, December 31, 2017 $ 1,267,231 $ (213,653) $ 1,053,578 - Additions for improvements 2,573 - 2,573 - Vessel disposal (41,213) 25,630 (15,583) - Depreciation for the year - (49,165) (49,165) Balance, December 31, 2018 $ 1,228,591 $ (237,188) $ 991,403 - Additions for improvements 2,804 - 2,804 - Impairment (55,396) 43,545 (11,851) - Vessel held for sale (7,130) - (7,130) - Vessel disposals (72,335) 24,965 (47,370) - Depreciation for the year - (45,559) (45,559) Balance, December 31, 2019 $ 1,096,534 $ (214,237) $ 882,297

Property and equipment, net

Property and equipment, net	12 Months Ended
	Dec. 31, 2019
Property and equipment, net [Abstract]
Property and equipment, net	5 . Property and equipment, net The amounts in the accompanying consolidated balance sheets are analyzed as follows: Property and Equipment Accumulated Depreciation Net Book Value Balance, December 31, 2017 $ 26,683 $ (4,033) $ 22,650 - Additions in property and equipment 252 - 252 - Depreciation for the year - (477) (477) Balance, December 31, 2018 $ 26,935 $ (4,510) $ 22,425 - Additions in property and equipment 125 - 125 - Depreciation for the year - (473) (473) Balance, December 31, 2019 $ 27,060 $ (4,983) $ 22,077

Long-term debt, current and non

Long-term debt, current and non-current	12 Months Ended
	Dec. 31, 2019
Long-term debt, current and non-current [Abstract]
Long-term debt, current and non-current	6 . Long-term debt, current and non-current The amount of long-term debt shown in the accompanying consolidated balance sheets is analyzed as follows: 2019 2018 9.5% Senior Unsecured Bond 100,000 100,000 Secured Term Loans 378,298 434,850 Total debt outstanding $ 478,298 $ 534,850 Less related deferred financing costs (3,347) (4,303) Total debt, net of deferred financing costs $ 474,951 $ 530,547 Less: Current portion of long term debt, net of deferred financing costs current (40,205) (96,434) Long-term debt, net of current portion and deferred financing costs, non-current $ 434,746 $ 434,113 8.5% Unsecured Senior Notes : On May 20, 2015, the Company offered $63,250 aggregate principal amount of 8.5% Senior Notes due 2020 (the “Notes”), including an overallotment, at the price of $25.0 per Note, pursuant to an approval obtained by a special committee of the Board of Directors. As part of the offering, the underwriters sold $12,750 aggregate principal amount of the Notes to, or to entities affiliated with, the Company’s chief executive officer, Mr. Simeon Palios, and other executive officers a nd certain directors of the Company at the public offering price. On October 29, 2018, the Company completed the redemption of all of its outstanding 8.50% Senior Notes due 2020 which until then had traded on the NYSE under the ticker symbol “DSXN”. The re demption price was equal to 100% of the principal amount of the Notes, plus accrued and unpaid interest to, but excluding, the date of redemption. The Notes bore interest at a rate of 8.5% per year, payable quarterly in arrears on the 15th day of February, May, August and November of each year. The Notes included financial and other covenants, including maximum net borrowings and minimum tangible net worth. 9.5% Senior Unsecured Bond : On September 27, 2018, the Company issued a $100,000 senior unsecured b ond (the “Bond”) maturing in September 2023 and may issue up to an additional $25,000 of the Bond on one or more occasions. The bond ranks ahead of subordinated capital and ranks the same with all other senior unsecured obligations of the Company other tha n obligations which are mandatorily preferred by law. Entities affiliated with the Company’s chief executive officer, Mr. Simeon Palios, and other executive officers and directors of the Company purchased $16,200 aggregate principal amount of the Bond. The Bond bears interest from September 27, 2018 at a US Dollar fixed-rate coupon of 9.50% and is payable semi-annually in arrears in March and September of each year. The Bond is callable in whole or in parts in three years at a price equal to 103% of nominal value; in four years at a price equal to 101.9% of the nominal value and in four and a half years at a price equal to 100% of nominal value. The bond includes financial and other covenants and is trading on the Oslo Stock Exchange under the ticker symbol “DIASH01” . Secured Term Loans: The Company, through its subsidiaries, has entered into various long term loan agreements with bank institutions to partly finance or, as the case may be, refinance part of the acquisition cost of certain of its fleet vesse ls. The loan agreements are repayable in quarterly or semi - annual installments plus one balloon installment per loan agreement to be paid together with the last installment and bear interest at LIBOR plus margin ranging from 1% to 2.5% . Their maturities ra nge from March 20 21 to January 2032 . For 2019 and 2018, the weighted average interest rates of the secured term loans were 4.56% and 4.31%, respectively. Under the secured term loans outstanding as of December 31 , 2019 , 32 vessels of the Company’s fleet are mortgaged with first preferred or priority ship mortgages, having an aggregate carrying value of $765,736 . Additional securities required by the banks include first priority assignment of all earnings, insurances, first assignment of time charter contracts that exceed a certain period, pledge over the shares of the borrowers, manager’s undertaking and subordination and requisition compensation and either a corporate guarantee by DSI (the “Guarantor”) or a guarantee by the ship owning companies (where applicable), financial covenants, as well as operating account assignments. The lenders may also require additional security in the future in the event the borrowers breach certain covenants under the loan agreements. Th e secured term loans generally include restrictions as to changes in management and ownership of the vessels, additional indebtedness, as well as minimum requirements regarding hull cover ratio and minimum liquidity per vessel owned by the borrowers, or th e G uarantor, maintained in the bank accounts of the borrowers, or the G uarantor. As at December 31 , 2019 and 2018 , the minimum cash deposits required to be maintained at all times under the Company’s loan facilities , amounted to $21,000 and $24,000 , respectively and is included in “Restricted cash” in the accompanying consolidated balance sheets . Furthermore, the secured term loans contain cross default provisions and additionally the Company is not permitted to pay an y dividends following the occurrence of an event of default. During the year ended December 31 , 2019 , the Company had the following agreements with banks, either as a borrower or as a guarantor, to guarantee the loans of its subsidiaries: Bremer Landesbank : On November 12, 2009, the Company drew down $40,000 under a secured loan agreement, which was repayable in 40 quarterly installments of $900 each plus one balloon installment of $4,000 payable together with the last installment on November 1 2 , 2019. The loan bore interest at LIBOR plus a margin of 2.15% per annum. The loan was prepaid in full in June 2019. Export-Import Bank of China and DnB NOR Bank ASA: On February 15, 2012, the Company drew down a first tranche of $37,450, under a secured loan agreement, w hich is repayable in 40 quarterly installments of approximately $6 28 each and a balloon of $12 , 3 32 payable together with the last installment on February 15, 2022. On May 18, 2012, t he Company drew down, under the same agreement, a second tranche of $34,64 0, which is repayable in 40 quarterly installments of approximately $ 581 each and a balloon of $11, 4 10 payable together with the last installment on May 18, 2022. The loan bears interest at LIBOR plus a margin of 2.50% per annum. On May 22, 2014, the Company drew down $15,000 under a secured loan agreement, which was repayable in 19 quarterly installments of $250 each and a balloon of $10,250 payable together with the last installment on February 22, 2019, on which date the loan was repaid. The loan bo re interest at LIBOR plus a margin of 3.0% per annum. On May 10, 2016, the Company drew down $13,510 under a secured loan agreement, which was payable in seven equal consecutive quarterly installments of about $20 each, four equal consecutive quarterly in stallments of about $283 and a balloon of about $12,242 payable together with the last installment on January 4, 2019, on which date it was repaid. The loan bore interest at LIBOR plus a margin of 3% per annum. Credit Agricole Corporate and Investment Ba nk (“Credit Agricole”): On September 1 5 , 2011, the Company drew down $15 ,00 0 under a secured loan agreement with Emporiki Bank of Greece S.A ., transferred to Credit Agricole o n December 13, 2012. The loan is repayable in 20 equal semiannual installments of $5 00 each and a balloon payment of $5 , 0 00 to be paid together with the last installment on September 15, 2021. The loan bears interest at LIBOR plus a margin of 2.5% per annum, or 1% for such loan amount that is equivalently secured by cash pledge in favo r of the bank. The Company maintains the equivalent of the loan balance in cash pledge in favour of the bank and pays the lower interest margin. Commonwealth Bank of Australia, London Branch: On January 13 , 2014, the Company drew down $9,500 under a secur ed loan agreement, which is repayable in 32 equal consecutive quarterly inst allments of $156 each and a balloon of $4 , 5 00 payable on January 13, 2022. The loan bears interest at LIBOR plus a margin of 2.25%. BNP Paribas (“BNP”): On December 19, 2014, the Company drew down $53 , 5 00 under a secured loan agreement, which is repayable in 14 equal semi-annual installments of approximately $ 1,574 and a balloon of $31,466 payable on November 30, 2021. The loan bears interest at LIBOR plus a margin of 2% . Additionally, o n July 1 6 , 2018, the Company drew down $75,000 under a new secured loan agreement with BNP . The loan is repayable in 20 consecutive quarterly installments of $1,562.5 and a balloon installment of $43,750 payable together with the last instal lment on July 16, 2023. The loan bears interest at LIBOR plus a margin of 2.3%. Nordea Bank AB, London Branch : On March 19, 2015, the Company drew down $93,080 under a secured loan agreement, which is repayable in 24 equal consecutive quarterly installments of about $1,862 each and a balloon of about $48,402 payable together with the last installment on March 19, 2021. The loan bears interest at LIBOR plus a margin of 2.1% . ABN AMRO Bank N.V.: On March 30, 2015, the Company drew down $50,160 und er a secured loan agreement, which is repayable in 24 equal consecutive quarterly installments of about $994 each and a balloon of $26,310 payable together with the last installment on March 30, 2021. The loan bears interest at LIBOR plus a margin of 2.0% . On March 30, 2016 , the Company drew down $ 25,755 under a new secured loan agreement, which was re payable in eight consecutive quarterly installments of $855 each and a balloon installment of $18,915 payable together with the last installment on June 30, 2019. The loan bore interest and LIBOR plus a margin of 3.00%. The loan was prepaid in full and was refinanced with a new loan agreement dated June 27, 2019. The Company drew down $25,000 under the new loan agreement, which is repayable in 20 consecutive q uarterly installments of $ 800 each and a balloon installment of $ 9,000 payable together with the last installment on June 28, 20 24. The loan bears interest and LIBOR plus a margin of 2.25%, Danish Ship Finance A/S: On April 30, 2015, the Company drew down $30 , 0 00 under a loan agreement, which is repayable in 28 equal consecutive quarterly installments of $ 500 each and a balloon of $16 ,00 0 payable together with the last installment on April 30, 2022. The loan bears interest at LIBOR plus a margin o f 2.15%. ING Bank N.V.: On November 19, 2015 , the Company drew down advance A of $27,950 under a secured loan agreement, which is repayable in 28 consecutive quarterly insta l lments of about $466 each and a balloon installment of about $ 14,907 payable toget her with the last installment on November 19, 2022. Advance B of $11,733 was drawn on October 6, 2015 and is repayable in 28 consecutive quarterly insta l lments of about $ 293 each and a balloon installment of about $ 3,520 payable together with the last inst allment on October 6, 2022. The loan bears interest at LIBOR plus a margin of 1.65%. Export-Import Bank of China: On January 4, 2017 , the Company drew down $57,240 under a secured loan agreement, which is repayable in 60 equal quarterly instalments of $954 each by January 4 , 2032 and bear s interest at L I BOR plus a margin of 2.3%. DNB Bank ASA.: On March 14, 2019, the Company drew down $19,000 under a secured loan agreement, which is repayable in 20 consecutive quarterly instalments of $477.3 and a balloon of $9,454 payable together with the last installment on March 14, 2024. The loan bears interest at LIBOR plus a margin of 2. 4 %. A s at December 31 , 2019 and 2018 , the Company was in compliance with all of its loan covenants. The maturities of the Company’s debt facilities described above, as at December 31 , 2019 , and throughout their term, are shown in the table below : Period Principal Repayment Year 1 $ 41,242 Year 2 143,853 Year 3 83,827 Year 4 157,363 Year 5 24,347 Year 6 and thereafter 27,666 Total $ 478,298

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2019
Commitments and Contingencies [Abstract]
Commitments and Contingencies	7 . Commitments and Contingencies a) Various claims, suits, and complaints, including those involving government regulations and product liability, arise in the ordinary course of the shipping business. In addition, losses may arise from disputes with charterers, agents, insurance and other claims with suppliers relating to the operations of the Company’s vessels. The Company accrues for the cost of environmental and other liabilities when management becomes aware that a liability is proba ble and is able to reasonably estimate the probable exposure. The Company’s vessels are covered for pollution in the amount of $1 billion per vessel per incident, by the P&I Association in which the Company’s vessels are entered. b) As at December 31 , 2019 , all of the Company’s vessels, except for two which were repositioning, were fixed under time charter agreements, considered operating leases. T he minimum contractual gross charter revenue expected to be generated from fixed and non-cancelable time charte r contracts existing as at December 31 , 2019 and until their expiration was as follows: Period Amount Year 1 $ 88,112 Year 2 1,412 Total $ 89,524

Capital Stock and Changes in Ca

Capital Stock and Changes in Capital Accounts	12 Months Ended
	Dec. 31, 2019
Capital Stock and Changes in Capital Accounts [Abstract]
Capital Stock and Changes in Capital Accounts	8 . Capital Stock and Changes in Capital Accounts a) Preferred stock : As at December 31 , 2019 and 2018 , the Company’s authorized preferred stock consists of 25,000,000 shares (all in registered form) of preferred stock, par value $0.01 per share, of which 1,000,000 are designated as Series A Participating Preferred Shares, 5,000,000 are designated as Series B Preferred Shares and since January 2019, 10,675 are designated as Series C Preferred Shares. b) Series B Preferred S tock: As at December 31 , 2019 and 2018 , the Company had 2,600,000 Series B Preferred Shares issued and outstanding with par value $0.01 per share, at $25.00 per share and with liquidati on preference at $25.00 per share and zero Series A Participating Preferred Shares issued and outstanding. Holders of series B preferred shares have no voting rights other than the ability, subject to certain exceptions, to elect one director if dividends for six quarterly dividend periods (whether or not consecutive) are in arrears and certain other limited protective voting rights. Also, holders of series B preferred shares, rank prior to the holders of common shares with respect to dividends, distributio ns and payments upon liquidation and are subordinated to all of the existing and future indebtedness. Dividends on the Series B preferred shares are cumulative from the date of original issue and are payable on the 15th day of January, April, July and Octo ber of each year at the dividend rate of 8.875% per annum, or $2.21875 per share per annum. For 2019 , 2018 and 2017 , dividends on Series B preferred shares amounted to $5,769 for each year . Since February 14, 2019, the Company may rede em, in whole or in part, the series B preferred shares at a redemption price of $25.00 per share plus an amount equal to all accumulated and unpaid dividends thereon to the date of redemption, whether or not declared. c) Series C Preferred Stock : As at December 31 , 2019 the Company had 10,675 Series C Preferred Shares issued and outstanding with par value $0.01 per share , issued on January 31, 2019 to an affiliate of its Chairman and Chief Executive Officer, Mr. Simeon Palios, for an aggregate purchase pric e of $1,066. The Series C Preferred Stock votes with the common shares of the Company, and each share entitles the holder thereof to 1,000 votes on all matters submitted to a vote of the stockholders of the Company. The transaction was approved unanimously by a committee of the Board of Directors established for the purpose of considering the transaction and consisting of the Company's independent directors. The Series C Preferred Stock has no dividend or liquidation rights and cannot be transferred without the consent of the Company except to the holder’s affiliates and immediate family members. The net proceeds from the issuance of the shares amounted to $960 . d ) Offering of common shares: On April 26, 2017, the Company issued a total 2 0,125,000 common shares, at a price of $4.00 per share, in a public offering. As part of the offering, entities affiliated with Simeon Palios, the Company’s Chief Executive Officer and Chairman, executive officers and certain directors, purchased an aggre gate of 5,500,000 common shares at the public offering price. The net proceeds from the offering after underwriting discounts and other offering expenses were $77,311. e) Repurchase of common shares: In December 2018, the Company repurchased a total of 4,166,666 common shares, at a price of $3.60 per share, in a tender offer which commenced in November 2018. The total cost from the tender offer amounted to $15,157. I n March 2019 , the Company repurchased in a tender offer 3,889,386 shares of its outstanding common stock at a price of $2.80 per share. I n June 2019, the Company repurchased 3,125,000 shares of its outstanding common stock at a price of $3.40 per share . I n July 2019, the Company re purchased 2,000,000 shares at a price of $3.75 per share . In O ctober 2019, the Company repurchased 2,816,900 shares at a price of $3.55 per share and finally in December 2019, the Company repurchased 2,739,726 shares at a price of 3.65. The aggregate cost of the shares repurchased amounted to $49,679 , including expenses. f) Incentive plan : In November 2014, the Company adopt ed the 2014 Equity Incen tive Plan, or the Plan, to issue awards to Key Persons in the form of (a) non-qualified stock, (b) stock appreciation rights, (c) restricted stock, (d) r estricted stock units, (e) dividend equivalents, (f) unrestricted stock and (g) other equity-based or equity-related Awards for a maximum number of 5,000,000 shares of common stock. This number was increased to 13,000,000 on May 31, 2018, after an amendmen t of the Plan. R estricted shares vest ratably over a specified period, and are subject to forfeiture until they vest. Unless they forfeit, grantees have the right to vote, to receive and retain all dividends paid and to exercise all other rights, powers an d privileges of a holder of shares. A s at December 31 , 2019 , 7,124,759 remained reserved for issuance. Restricted stock for 2019 , 2018 and 2017 , is analyzed as follows: Number of Shares Weighted Average Grant Date Price Outstanding at December 31, 2016 3,942,666 $ 4.89 Granted 1,310,000 3.95 Vested (1,611,549) 5.46 Outstanding at December 31, 2017 3,641,117 $ 4.30 Granted 1,800,000 3.82 Vested (1,679,484) 4.38 Outstanding at December 31, 2018 3,761,633 $ 4.04 Granted 2,000,000 2.99 Vested (1,928,400) 3.75 Outstanding at December 31, 2019 3,833,233 $ 3.63 All restricted share awards issued during 2019 , 2018 and 2017 have a vesting period of three years each. The fair value of the restricted shares has been determined with reference to the closing price of the Company’s stock on the date the agreements were signed. The aggregate compensation cost is being recognized ratably in the consolidated statement of operations over the respective vesting periods. For 2019 , 2018 and 2017 an amount of $7,581 , $7,279 , and $8,232 , respectively, was recognized in “General and administrative expenses” presented in the accompanying consolidated statements of operations. At December 31 , 2019 and 2018 , the total unrecognized cost relating to restr icted share awards was $8,505 and $10,106 , respectively. At December 31 , 2019 , the weighted-average period over which the total compensation cost related to non-vested awards not yet recognized is expected to be recognized is 0.85 years. g) Share Repurchase Agreement: On May 22, 2014, the Company’s Board of Directors authorized a share repurchase plan for up to $100,000 worth of shares of the Company’s common stock. During 2019 , 2018 , and 2017 , the Company did not repurchase any shares (Note 13 (c)) .

Interest and Finance Costs

Interest and Finance Costs	12 Months Ended
	Dec. 31, 2019
Interest and Finance Costs [Abstract]
Interest and Finance Costs	9 . Interest and Finance Costs The amounts in the accompanying consolidated statements of operations are analyzed as follows: 2019 2018 2017 Interest expense $ 27,963 $ 28,299 $ 24,978 Amortization of financing costs 1,126 1,939 1,455 Loan expenses 343 268 195 Total $ 29,432 $ 30,506 $ 26,628 Total interest on long-term debt for 2019 , 2018 and 2017 amounted to $27,963 , $28,299 and $24,991 , respectively, of which $0 , $0 and $13 , respectively , w ere capitalized and included “Vessels, net book value”, in the accompanying consolidated balance sheets .

Earnings_(loss) per Share

Earnings/(loss) per Share	12 Months Ended
	Dec. 31, 2019
Earnings/(loss) per Share [Abstract]
Earnings/(loss) per Share	10 . Earnings/(l oss ) per Share All common shares issued (including the restricted shares issued under the Company’s i ncentive p lan s) are the Company’s common stock and have equal rights to vote and participate in dividends. The calculation of basic earnings/(loss) per share does not treat the non-vested shares (not considered participating securities) as outstanding until the time/service-based vesting restriction has lapsed. Incremental shares are the number of shares assumed issued under the treasu ry stock method weighted for the periods the non-vested shares were outstanding. For 2018, the denominator of the diluted earnings per share calculation includes 979,141 shares, being the number of incremental shares assumed issued under the treasury stock method weighted for the periods the non-vested shares were outstanding. For 2019 and 2017 , the Company incurred losses, therefore the effect of incremental shares was anti-dilutive and basic and diluted loss per share was the same. Profit or loss attributable to common equity holders is adjusted by the amount of dividends on Series B Preferred Stock as follows: 2019 2018 2017 Net income/(loss) $ (10,535) $ 16,580 $ (511,714) Less dividends on series B preferred shares (5,769) (5,769) (5,769) Net income/(loss) attributed to common stockholders $ (16,304) $ 10,811 $ (517,483) Weighted average number of common shares, basic 95,191,116 103,736,742 95,731,093 Incremental shares - 979,141 - Weighted average number of common shares, diluted 95,191,116 104,715,883 95,731,093 Earnings/(loss) per share, basic and diluted $ (0.17) $ 0.10 $ (5.41)

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2019
Income Taxes [Abstract]
Income Taxes	11 . Income Taxes Under the laws of the countries of the companies’ incorporation and / or vessels’ registration, the companies are not subject to tax on international shipping income; however, they are subject to registration and tonnage taxes, which are included in vessel operating expenses in the accompanying consolidated statements of operations. The vessel-owning companies with vessels that have called on the United States are obliged to file tax returns with the Internal Revenue Service. However , p ursuant to the Internal Revenue Code of the United States, U.S. source income from the international operations of ships is generally exempt from U.S. tax. The applicable tax is 50% of 4% of U.S.-related gross transportation income unless an exemption a pplies. The Company and each of its subsidiaries expects it qualif ies for this statutory tax exemption for the 2019 , 2018 and 2017 taxable years, and the Company takes this position for United States federal income tax return reporting purposes.

Financial Instruments and Fair

Financial Instruments and Fair Value Disclosures	12 Months Ended
	Dec. 31, 2019
Financial Instruments and Fair Value Disclosures [Abstract]
Financial Instruments and Fair Value Disclosures	12 . Financial Instruments and Fair Value Disclosures The carrying values of temporary cash investments, accounts receivable and accounts payable approximate their fair value due to the short-term nature of these financial instruments. The fair values of long-term bank loans approximate the recorded values, due to their variable interest rates. The fair value of the Bond (Note 6 ) having a fixed interest rate amounted to $ 99,250 as of December 31 , 2019 , and was determined through th e Level 1 input of the fair value hierarchy as defined in FASB guidance for Fair Value Measurements based on the quoted price of the instrument on that date stated under the ticker s ymbol “ DIASH01 ” on the Oslo Børs . During 2019, t he vessels Danae , Dione , Thetis and Calipso were measured at their fair value determined through the Level 1 input of the fair value hierarchy as defined in FASB guidance for Fair Value Measurements based on the agreed price to sell the vessels, less costs to sell , as a result fr om their classification as held for sale at the dates of their memoranda of agreement (Note 4 ) . At December 31, 2019, three vessels were recorded at fair value as their estimated cash flows over their remaining useful lives and their eventual dis position was less than their carrying amount. The fair value of one vessel was determined through Level 1 input of the fair value hierarchy, based on the agreed price to sell the vessel (Notes 4 and 13 ) and for the other two through Level 2 inputs of the fair value hierarchy by taking into consideration third party valuations which were based on the last done deals of sale of vessels with similar characteristics, such as type, size and age. The Company is exposed to interest rate fluctuati ons associated with its variable rate borrowings. Currently, the company does not have any derivative instruments to manage such fluctuations.

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	13 . Subsequent Events a) Series B Preferred Stock Dividends: On January 15, 2020 , the Company paid a dividend on its series B preferred stock, amounting to $0.5546875 per share, or $1,442, to its stockholders of record as of January 1 4 , 20 20 . b) Sale of vessels: On January 29, 2020, the Company through a separate wholly-owned subsidiary entered into a Memorandum of Agreement to sell to an unaffiliated third party the vessel Norfolk , for a sale price of $9,350 before commissions. In February 2020, t he buyers of Calipso (Note 4 ) and the buyers of Norfolk elected to exercise their right to cancel the c ontract as a result of vessels ’ missing the cancelling date s due to unforeseen events, unrelated to the condition of the vessels. On February 26, 2020, the Company signed a new Memorandum of Agreement to sell the vessel Norfolk to an unaffiliated third party for a sale price of $ 8,750 before commissions and was delivered to the buyer in March 2020. c) Share repurchases : On February 7, 2020 , the Company repurchased, in a tender offer announced in January 2020, 3,030,303 shares of its common stock at a price of $3.30 per share. Additionally, in March 2020, the Company repurchased 1,088,034 shares of co mmon stock under its share repurchase plan authorized in May 2014, for $1,895 including commissions (Note 8 (g)). d) Investment in Performance Shipping : In February 2020, the Company received an offer from Performance Shipping to redeem the Series C Preferred Stock owned by the Company for an aggregate price of $1,500. The Company’s Board of Directors form ed a special committee to evaluate the transaction with the assistance of an independent financial advisor. The transaction was recommended by the special committee to the Board of Directors, which resolved to accept the offer. The transaction was concluded on March 27, 2020 with the receipt of the related funds by Performance Shipping. e) Annual Incentive Bonus : On February 19, 2020 the Company’s Board of Directors approved the award of 2,200,000 shares of restricted common stock to executive management and non-executive directors, pursuant to the Company’s 2014 equity incentive plan. The fair value of the restricted shares based on the c losing price on the date of the Board of Directors’ approval was about $5,984 and will be recognized in income ratably over the restricted shares vesting period which will be 3 years for all directors except for two whose shares will be awarded without ves ting restrictions due to their resignation from the board. f) Covid-19 outbreak : On March 11, 2020, the World Health Organization declared the 2019 Novel Coronavirus (the “Covid-19”) outbreak a pandemic. In response to the outbreak, many countries, ports and organizations, including those where the Company conducts a large part of its operations, have implemented measures to combat the outbreak, such as quarantines and travel restrictions. The Company’s financial and operating performance may be adversely affected by the recent coronavirus outbreak. Any prolonged restrictive measures in order to control the spread of Covid-19, or other adverse public health developments in Asia or in other geographies in which the Company’s vessels operate may significantly impact the demand for the Company’s vessels and in turn, may eventually lead to a material and adverse effect on the Company’s business operations, and financial condition .

Significant Accounting Polici_2

Significant Accounting Policies and Recent Accounting Pronouncements (Policies)	12 Months Ended
	Dec. 31, 2019
Significant Accounting Policies and Recent Accounting Pronouncements [Abstract]
Principles of Consolidation	a) Principles of Consolidation : The accompanying consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles, and include the accounts of Diana Shipping Inc. and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated upon consolidation. Under Accounting Standards Codification (“ASC”) 810 “Consolidation”, the Company consolidates entities in which it has a c ontrolling financial interest, by first considering if an entity meets the definition of a variable interest entity ("VIE") for which the Company is deemed to be the primary beneficiary under the VIE model, or if the Company controls an entity through a ma jority of voting interest based on the voting interest model. The Company evaluates financial instruments, service contracts, and other arrangements to determine if any variable interests relating to an entity exist. For entities in which the Company has a variable interest, the Company determines if the entity is a VIE by considering whether the entity’s equity investment at risk is sufficient to finance its activities without additional subordinated financial support and whether the entity’s at-risk equit y holders have the characteristics of a controlling financial interest. In performing the analysis of whether the Company is the primary beneficiary of a VIE, the Company considers whether it individually has the power to direct the activities of the VIE t hat most significantly affect the entity’s performance and also has the obligation to absorb losses or the right to receive benefits of the VIE that could potentially be significant to the VIE. The Company reconsiders the initial determination of whether a n entity is a VIE if certain types of events (“reconsideration events”) occur. I f the Company holds a variable interest in an entit y that previously was not a VIE, it reconsiders whether the entity has become a VIE. The Company has identified that it has v ariable interests in Performance Shipping Inc., (or “Performance Shipping”) and Diana Wilhelmsen Management Limited. The Company has assessed that Performance Shipping is a VIE since 2017 but the Company is not the primary beneficiary (Note 3 (b) ).
Use of Estimates	b) Use of Estimates: The preparation of consolidated financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilit ies and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Other Comprehensive Income / (Loss)	c) Other Compreh ensive Income / ( L oss): The Company separately presents certain transactions, which are recorded directly as components of stockholders’ equity. Other Comprehensive Income / (Loss) is presented in a separate statement.
Foreign Currency Translation	d) Foreign Currency Translation: The functional currency of the Company is the U.S. d ollar because the Company’s vessels operate in international shipping markets, and therefore primarily transact business in U.S. d ollars. The Company’s accounting records are maintained in U.S. d ollars. Tran sactions involving other currencies during the year are converted into U.S. d ollars using the exchange rates in effect at the time of the transactions. At the balance sheet dates, monetary assets and liabilities which are denominated in other currencies ar e translated into U.S. d ollars at the year-end exchange rates. Resulting gains or losses are reflected separately in the accompanying consolidated statements of operations.
Cash and Cash Equivalents and Restricted Cash	e) Cash and Cash Equivalents and Restricted Cash : The Company considers highly li quid investments such as time deposits, certificates of deposit and their equivalents with an original maturity of three months or less to be cash equivalents. Restricted cash consists mainly of cash deposits required to be maintained at all times under the Company’s loan facilities (Note 6 ). As of December 31, 2018 , restricted cash also included $582 of cash guarantee which was restricted to withdrawal or usage and was released in November 2019.
Accounts Receivable, Trade	f) Accounts Receivable, Trade: The amount shown as accounts receivable, trade, at each balance sheet date, includes receivables from charterers for hire, net of any provision for doubtful accounts. At each balance sheet date, all potentially uncollectible accounts are assessed individually for purposes of determining the appropriate provision for doubtful accounts. No provision for doubtful accounts was established as of December 31, 2019 and 2018 .
Inventories	g) Inventories : Inventories consist of lubricants and victualling which are stated at the lower of co st or net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. When evidence exists that the net realizable value of invent ory is lower than its cost, the difference is recognized as a loss in earnings in the period in which it occurs. Cost is determined by the first in, first out method. Inventories may also consist of bunkers when on the balance sheet date a vessel remains i dle. Bunkers , if any, are also stated at the lower of cost or net realizable value and cost is determined by the first in, first out method.
Vessel Cost	h) Vessel Cost : Vessels are stated at cost which consists of the contract price and any material expenses incurred upon acquisition or during construction. Expenditures for conversions and major improvements are also capitalized when they appreciably extend the life, increase the earning capacity or improve the efficiency or safety of the vessels; otherwise these amou nts are charged to expense as incurred. Interest cost incurred during the assets' construction periods that theoretically could have been avoided if expenditure for the assets had not been made is also capitalized. The capitalization rate, applied on accum ulated expenditures for the vessel, is based on interest rates applicable to outstanding borrowings of the period.
Vessels held for sale	i) Vessels held for sale: The Company classifies assets as being held for sale when the respective criteria are met. Long-lived assets or di sposal groups classified as held for sale are measured at the lower of their carrying amount or fair value less cost to sell. These assets are not depreciated once they meet the criteria to be held for sale.
Property and equipment	j ) Property and equipment: The Company owns t he land and building where its offices are located. Land is stated at cost and it is not subject to depreciation. The building has an estimated useful life of 55 years with no residual value. Depreciation is calculated on a straight-line basis. Equipment consists of office furniture and equipment, computer software and hardware and vehicles which consist of motor scooters and a car . The useful life of the car is 10 years, of the office furniture, equipment and the scooters is 5 years; and of the computer software and hardware is 3 years. Depreciation is calculated on a straight-line basis.
Impairment of Long-Lived Assets	k ) Impairment of Long-Lived Assets: Long-lived assets (vessels, land, and building) and certain identifiable intangibles held and used by an entity are reviewed for impairment whenever events or changes in circumstances (such as market conditions, obsolesce or damage to the asset, potential sales and other business plans) indicate that the carrying amount of the assets , plus unamortized dry-docking costs , may not be recoverable. When the estimate of undiscounted projected net operating cash flows, excluding interest charges, expected to be generated by the use of the asset over its remaining useful life and its eventual disposition is less than its carrying amount, the Company should evaluate the asset for impairment loss. Measurement of the impairment loss is based on the fair value of the asset. The Company determines the fair value of its assets based on management estimates and assumptions , by making use of available market data and taking into consideration third party valuations. With respect to the vessels, the Company determines undiscounted projected net operating cash flows for each vessel by considering the historical and estimated vessels’ performance and utiliz ation, assuming (i) future revenues calculated for the fixed days, using the fixed charter rate of each vessel from existing time charters and for the unfixed days, the most recent 10 year average of historical 1 year time charter rates available for each type of vessel over the remaining estimated life of each vessel, net of commissions. Historical ten-year blended average one-year time charter rates are in line with the Company’s overall chartering strategy, they reflect the full operating history of vess els of the same type and particulars with the Company’s operating fleet and they cover at least a full business cycle, where applicable; (ii) expected outflows for scheduled vessels’ maintenance; (iii) vessel operating expenses; and (iv) fleet utilization; assumptions in line with the Company’s historical performance and its expectations for future fleet utilization under its current fleet deployment strategy. During the last quarter of 2017, the Company’s management considered various factors, including the recovery of the market, the worldwide demand for dry-bulk products, supply of tonnage and order book and concluded that the charter rates for the years 2008-2010 were exceptional . In this respect the Company’s management decided to exclude from the 10- year average of 1 year time charters these three years for which the rates were well above the average and which were not considered sustainable for the foreseeable future. Similarly, t he Company performed the exercise discussed above , for 2018 , by excluding from the 10-year aver age of 1 year time charters the y ears 2009-2010 and for 2019 , by excluding the rates for the year 2010. This exercise resulted to recording impairment on certain vessels’ carrying value in 2017 and 2019 (Note 4 ) . No impairme nt loss was identified or recorded for 2018 . With respect to the land and building, the Company determines undiscounted projected net operating cash flows by considering an estimated monthly rent the Company would have to pay in order to lease a similar property, during the useful life of the building. N o impairment loss was identified or recorded for 2019 , 2018 and 2017 and the Company has not identi fied any other facts or circumstances that would require the write down of the value of its land or building in the near future.
Vessel Depreciation	l ) Vessel Depreciation: Depreciation is computed using the straight-line method over the estimated useful life of the vessels, after considering the estimated salvage (scrap) value. Each vessel’s salvage value is equal to the product of its lightweight tonnage and estimated scrap rate. Management estimates the useful life of the Company’s vessels to be 25 years from the date of initial delivery from the shipyard. Second hand vessels are depreciated from the date of their acquisition through their remaining estimated useful life. When regulations place limitations over the ability of a vessel to trade on a worldwide basis, its remaining useful life is adjusted at the date such regulations are adopted .
Accounting for Dry-Docking Costs	m ) Accounting for Dry-Docking Costs : The Company follows the deferral method of accounting for dry-docking costs whereby actual costs incurred are deferred and are amortized on a straight-line basis over the period through the date the next dry-docking is scheduled to become due. Unamortized dry-docking costs of vessels that are sold or impaired are written off and included in the calculation of the resulting gain or loss in the year of the vessel’s sale or impairment (Note 4 ) .
Financing Costs	n ) Financing Costs : Fees paid to lenders for obtaining new loans or refinancing existing ones are deferred and recorded as a contra to debt. Other fees paid for obtaining loan facilities not used at the balance sheet date are deferred. Fees relating to drawn loan facilities are amortized to interest and finance costs over the life of the related debt using the effective interest method and fees incurred for loan facilities not used at the balance sheet date are amortized using the straight line method according to their availability terms. Unamortized fees relating to loans repaid or refinanced as debt extinguishment are expensed as interest and finance costs in the period the repayment or extinguishment is made. Loan commitment fees are charged to expense in the period incurred, unless they relate to loans obtained to finance vessels under construction, in which case they are capitalized to the vessels’ cost.
Concentration of Credit Risk	o ) Concentration of Credit Risk : Financial instruments, which potentially subject the Company to significant concentrations of credit risk, consist principally of cash and trade accounts receivable. The Company places its temporary cash investments, consisting mostly of deposits, with various qualified financial institutions and performs periodic evaluations of the relative credit standing of those financial institutions that are considered in the Company’s investment strategy. The Company limits its credit risk with accounts receivable by performing ongoing credit evaluations of its customers’ financial condition and generally does not require collateral for its accounts receivable and does not have any agreements to mitigate credit risk.
Accounting for Revenues and Expenses	p ) Accounting for Revenues and Expenses : Revenues are generated from time charter agreements which contain a lease as they meet the criteria of a lease under ASC 842. Agreements with the same charterer are accounted for as separate agreements according to their specific terms and conditions. All agreements contain a minimum non-cancellable period and an extension period at the option of the charterer. Each lease term is assessed at the inception of that lease. Under a time charter agreement, the charterer pays a daily hire for the use of the vessel and reimburses the owner for hold cleanings, extra insurance premi ums for navigating in restricted areas and damages caused by the charterers. Additionally, the charter er pays to third parties port, canal and bunkers consumed during the term of the time charter agreement. Such costs are considered direct costs and are not recorded as they are directly paid by charterers, unless they are for the account of the owner, in which case they are included in voyage expenses. Additionally, the owner pays commissions on the hire revenue, to both the charterer and to brokers, which are direct costs and are recorded in voyage expenses. Under a time charter agreement, the owner pays for the operation and the maintenance of the vessel, including crew, insurance, spares and repairs, which are recognized in operating expenses. The Company , as lessor, has elected not to allocate the consideration in the agreement to the separate lease and non-lease components (operation and maintenance of the vessel) as their timing and pattern of transfer to the charterer, as the lessee , are the same and the lease component, if accounted for separately, would be classified as an operating lease. Additionally, th e lease component i s considered the predominant component as th e Company has assessed that more value is ascribed to the vessel rather than to the services provided under the time charter contracts . The majority of the vessels are employed on short to medium-term time charter contracts, which provides flexibility in responding to market developments. The Company monitor s developments in the dry bulk shipping industry on a regular basis and adjust s the charter hire periods for the vessels according to prevailing market conditions. In order to take advantage of relatively stable cash flow and high utilization rates, some of the vessels may be fixed on long-term time charters.
Repairs and Maintenance	q ) Repairs and Maintenance: All repair and maintenance expenses including underwater inspection expenses are expensed in the year incurred. Such costs are included in vessel operating expenses in the accompanying consolidated statements of operations.
Earnings / (loss) per Common Share	r ) Earnings / (loss) per Common Share: Basic earnings / (loss) per common share are computed by dividing net income / (loss) available to common stockholders by the weighted average number of common shares outstanding during the year. Diluted earnings per common share, reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised.
Segmental Reporting	s ) Segmental Reporting: The Company engages in the operation of dry-bulk vessels which has been identified as one reportable segment. The operation of the vessels is the main source of revenue generation , the services provided by the vessels are similar and they all operat e under the same economic environment . Additionally, the vessels do not operate in specific geographic areas , as they trade worldwide; they do not trade in specific trade routes, as their trading (route and cargo) is dictated by the charterers; and t he Company does not evaluate the operating results for each type of dry bulk vessel s (i.e. P anamax, C apesize etc.) for the purpose of making decisions about allocating resources and assessing performance.
Fair Value Measurements	t ) Fair Value Measurements : T he Company classifies and discloses its assets and liabilities carried at fair value in one of the following categories: Level 1: Quoted market prices in active markets for identical assets or liabilities; Level 2: Observable market based inputs or unobservable inputs that are corroborated by market data; Level 3: Unobservable inputs that are not corroborated by market data.
Share Based Payments	u ) Share Based Payments: The Company issues restricted share awards which are measured at their grant date fair value and are not subsequently re - measured. That cost is recognized over the period during which an employee is required to provide service in exchange for the award—the requisite service period (usually the vesting period). No compensation cost is recognized for equity instruments for which employees do not render the requisite service. Forfeitures of awards are accounted for when and if they occur. If an equity award is modified after the grant date, incremental compensation cost will be recognized in an amount equal to the excess of the fair value of the modified award over the fair value of the original award immediately before the modification.
Equity method investments	v ) Equity method investments: Investments in common stock in entities over which the Company exercises significant influence, but does not exercise control are accounted for by the equity method of accounting. Under this method, the Company records such an investment at cost and adjusts the carrying amount for its share of the earnings or losses of the entity subsequent to the date of investment and reports the recognized earnings or losses in income. Dividends received , if any, reduce the carrying amount of the investment. When the Company’s share of losses in an entity accounted for by the equity method equals or exceeds its interest in the entity, the Company does not recognize further losses, unless the Company has made advances, incurred obligations and made payments on behalf of the entity. The Company also evaluates whether a loss in value of an investment that is other than a temporary decline should be recognized. Evidence of a loss in value might include absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity that would justify the carrying amount of the investment. T he Company assessed the financial condition of Performance Shipping (Note 3 (b)) , the market conditions that could affect its operations in the near future and historical losses of its investment and as a result the Company recorded impairment in 2017, which is included in Gain/(loss) from equity method investments in the accompanying statements of operations.
Going concern	w ) Going concern: M anagement evaluate s, at each reporting period, whether there are conditions or events that raise substantial doubt about the C ompany's ability to continue as a going concern within one year from the date the financial statements are issued.
Financial Instruments, Recognition and Measurement	x ) Financial Instruments, Recognition and Measurement: Equity securities with no determinable value, such as the Company’s investment in Performance Shipping (Note 3 (b) ) are recorded at their cost and they are assessed for impairment, in accordance with ASU 2016-01 Financial Instruments-Overall, Recognition and Measurement of Financial Assets and Financial Liabilities . The Company accounts for its investment at cost minus impairment, unless it determines that an observable transaction for a similar security took place, as determined in ASU 2018-03 Technical Corrections and Improvements to Financial Instruments – Overall. As at December 31, 2019 the Company assess ed the voting rights held by the shareholders of Performance Shipping compared to the voting rights held by t he Company . Based on the fact that the shareholders of Performance Shipping increased their voting power , the Company’s voting power would be limited if not required. Based on this assessment, the Company determined that the carrying value of the investment may not be recoverable and recorded impairment (Note 3 (b)). For 2018 , no impairment was recognized.
Shares repurchased and retired	y ) Shares repurchased and retired: Company’s shares repurchased for retirement, are immediately cancelled and the Company’s share capital is accordingly reduced. Any excess of the cost of the shares over their par value is allocated in additional paid-in capital, in accordance with ASC 505-30-30, Treasury Stock.
Recent Accounting Pronouncements	Recent Accounting Pronouncements not yet adopted On August 2018, the FASB issued ASU No. 2018-13, “Fair Value Measurement (Topic 820)—Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement”, which improves the effectiveness of fair value measurement disclosures. In particular, the amendments in this Update modify the disclosure requirements on fair value measurements in Topic 820, Fair Value Measurement, based on the concepts in FASB Concepts Statement, Conceptual Framework for Financial Reporting—Chapter 8: Notes to Financial Statements, including the consideration of costs and benefits. The amendments in the Update apply to all entities that are required under existing GAAP, to make disclosures about recurring and non-recurring fair value measurements. ASU No. 2018-13 is effective for annual periods, including interim periods within those annual periods, beginning after December 15, 2019. The amendments on changes in unrealized gains and losses, the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements, and the narrative description of measurement uncertainty should be applied prospectively for only the most recent interim o r annual period presented in the initial fiscal year of adoption. All other amendments should be applied retrospectively to all periods presented upon their effective date. Early adoption is permitted upon issuance of this Update. An entity is permitted to early adopt any removed or modified disclosures upon issuance of this Update and delay adoption of the additional disclosures until their effective date. The Company has assessed the impact of this new accounting guidance and the adoption of this ASU does not have a material impact on its consolidated financial statements and related disclosures. On October 2018, the FASB issued ASU No. 2018-17, “Consolidation (Topic 810)—Targeted Improvements to Related Party Guidance for Variable Interest Entities”. The Board is issuing this Update in response to stakeholders’ observations that Topic 810, Consolidation, could be improved in the following areas: i) applying the variable interest entity (VIE) guidance to private companies under common control, ii) consider ing indirect interests held through related parties under common control for determining whether fees paid to decision makers and service providers are variable interests. The amendments in this Update improve the accounting for those areas, thereby improv ing general purpose financial reporting. ASU No. 2018-17 is effective for annual periods, including interim periods within those annual periods, beginning after December 15, 2019. All entities are required to apply the amendments in this Update retrospecti vely with a cumulative-effect adjustment to retained earnings at the beginning of the earliest period presented. Early adoption is permitted. The Company has assessed the impact of this new accounting guidance and the adoption of this ASU does not have a material impact on its consolidated financial statements and related disclosures. In April 2019, the FASB issued ASU 2019-04, Codification Improvements to Topic 326, Financial Instruments Credit Losses, Financial Instruments—Credit Losses, Topic 815, Der ivatives and Hedging, and Topic 825 Financial Instruments, the amendments of which clarify the modification of accounting for available for sale debt securities excluding applicable accrued interest, which must be individually assessed for credit losses wh en fair value is less than the amortized cost basis. In May 2019, the FASB issued ASU 2019-05, Financial Instruments—Credit Losses (Topic 326)—Targeted Transition Relief, which is the final version of Proposed Accounting Standards Update 2019-100—Targeted Transition Relief for Topic 326, Financial Instruments—Credit Losses, which has been deleted. This Update provides entities with an option to irrevocably elect the fair value option applied on an instrument-by-instrument basis for certain financial assets upon the adoption of Topic 326. The fair value option election does not apply to held-to-maturity debt securities. The effective date and transition requirements for the amendments in these Updates are the same as the effective dates and transition require ments in Update 2016-13, as amended by these Updates. The Company has assessed the impact of this new accounting guidance and the adoption of this ASU does not have a material impact on its consolidated financial statements and related disclosures.

Basis of Presentation and Gen_2

Basis of Presentation and General Information (Tables)	12 Months Ended
	Dec. 31, 2019
Basis of Presentation and General Information [Abstract]
Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]	Charterer 2019 2018 2017 A 18% 16% 14% B 16% 14% 12% C 14% 15% 17% D 12% 10%

Vessels (Tables)

Vessels (Tables)	12 Months Ended
	Dec. 31, 2019
Vessels [Abstract]
Schedule Of Property Plant And Equipment [Table Text Block]	Vessel Cost Accumulated Depreciation Net Book Value Balance, December 31, 2017 $ 1,267,231 $ (213,653) $ 1,053,578 - Additions for improvements 2,573 - 2,573 - Vessel disposal (41,213) 25,630 (15,583) - Depreciation for the year - (49,165) (49,165) Balance, December 31, 2018 $ 1,228,591 $ (237,188) $ 991,403 - Additions for improvements 2,804 - 2,804 - Impairment (55,396) 43,545 (11,851) - Vessel held for sale (7,130) - (7,130) - Vessel disposals (72,335) 24,965 (47,370) - Depreciation for the year - (45,559) (45,559) Balance, December 31, 2019 $ 1,096,534 $ (214,237) $ 882,297

Property and equipment, net (Ta

Property and equipment, net (Tables)	12 Months Ended
	Dec. 31, 2019
Property and equipment, net [Abstract]
Schedule Of Property And Equipment [Table Text Block]	Property and Equipment Accumulated Depreciation Net Book Value Balance, December 31, 2017 $ 26,683 $ (4,033) $ 22,650 - Additions in property and equipment 252 - 252 - Depreciation for the year - (477) (477) Balance, December 31, 2018 $ 26,935 $ (4,510) $ 22,425 - Additions in property and equipment 125 - 125 - Depreciation for the year - (473) (473) Balance, December 31, 2019 $ 27,060 $ (4,983) $ 22,077

Long term debt, current and non

Long term debt, current and non-current (Tables)	12 Months Ended
	Dec. 31, 2019
Long term debt, current and non-current [Abstract]
Schedule of Long-term Debt Instruments [Table Text Block]	2019 2018 9.5% Senior Unsecured Bond 100,000 100,000 Secured Term Loans 378,298 434,850 Total debt outstanding $ 478,298 $ 534,850 Less related deferred financing costs (3,347) (4,303) Total debt, net of deferred financing costs $ 474,951 $ 530,547 Less: Current portion of long term debt, net of deferred financing costs current (40,205) (96,434) Long-term debt, net of current portion and deferred financing costs, non-current $ 434,746 $ 434,113
Schedule of Maturities of Long-term Debt [Table Text Block]	Period Principal Repayment Year 1 $ 41,242 Year 2 143,853 Year 3 83,827 Year 4 157,363 Year 5 24,347 Year 6 and thereafter 27,666 Total $ 478,298

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2019
Fixed non-cancellable revenues under time charter contracts [Abstract]
Schedule Of Fixed Non CancelableTime Charter Contracts [Table Text Block]	Period Amount Year 1 $ 88,112 Year 2 1,412 Total $ 89,524

Capital Stock and Changes in _2

Capital Stock and Changes in Capital Accounts (Tables)	12 Months Ended
	Dec. 31, 2019
Capital Stock and Changes in Capital Accounts [Abstract]
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]	Number of Shares Weighted Average Grant Date Price Outstanding at December 31, 2016 3,942,666 $ 4.89 Granted 1,310,000 3.95 Vested (1,611,549) 5.46 Outstanding at December 31, 2017 3,641,117 $ 4.30 Granted 1,800,000 3.82 Vested (1,679,484) 4.38 Outstanding at December 31, 2018 3,761,633 $ 4.04 Granted 2,000,000 2.99 Vested (1,928,400) 3.75 Outstanding at December 31, 2019 3,833,233 $ 3.63

Interest and Finance Costs (Tab

Interest and Finance Costs (Tables)	12 Months Ended
	Dec. 31, 2019
Interest and Finance Costs [Abstract]
Schedule Of Interest And Finance Costs [Table Text Block]	2019 2018 2017 Interest expense $ 27,963 $ 28,299 $ 24,978 Amortization of financing costs 1,126 1,939 1,455 Loan expenses 343 268 195 Total $ 29,432 $ 30,506 $ 26,628

Earnings_(loss) per Share (Tabl

Earnings/(loss) per Share (Tables)	12 Months Ended
	Dec. 31, 2019
Earnings/(loss) per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	2019 2018 2017 Net income/(loss) $ (10,535) $ 16,580 $ (511,714) Less dividends on series B preferred shares (5,769) (5,769) (5,769) Net income/(loss) attributed to common stockholders $ (16,304) $ 10,811 $ (517,483) Weighted average number of common shares, basic 95,191,116 103,736,742 95,731,093 Incremental shares - 979,141 - Weighted average number of common shares, diluted 95,191,116 104,715,883 95,731,093 Earnings/(loss) per share, basic and diluted $ (0.17) $ 0.10 $ (5.41)

Basis of Presentation and Gen_3

Basis of Presentation and General Information, textual (Details)	12 Months Ended
	Dec. 31, 2019
Basis of Presentation and General Information [Abstract]
Entity Incorporation, Date of Incorporation	Mar. 8, 1999
Entity Incorporation, Country Name	the Republic of the Marshall Islands
Diana Wilhelmsen Management Limited [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	50.00%

Basis of Presentation and Gen_4

Basis of Presentation and General Information, detail (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Minimum [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	10.00%	10.00%	10.00%
Major Customer A [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	18.00%	16.00%	14.00%
Major Customer B [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	16.00%	14.00%	12.00%
Major Customer C [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	14.00%	15.00%	17.00%
Major Customer D [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	12.00%	10.00%

Significant Accounting Polici_3

Significant Accounting Policies and Recent Accounting Pronouncements, textuals (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Property, Plant and Equipment [Line Items]
Impairment of Long-Lived Assets Held-for-use	$ 11,851
Restricted Cash and Cash Equivalents, Noncurrent	$ 21,000	$ 24,582
Cash and Cash Equivalents [Abstract]
Cash Equivalents Description	three months or less
Receivables [Abstract]
Provision for Doubtful Accounts	$ 0	0
Property Plant And Equipment Impairment Or Disposal [Abstract]
Time charter equivalent rate assumed for asset impairment	10 year average of historical 1 year time charter rates. During the last quarter of 2017, the Company’s management considered various factors, including the recovery of the market, the worldwide demand for dry-bulk products, supply of tonnage and order book and concluded that the charter rates for the years 2008-2010 were exceptional. In this respect the Company’s management decided to exclude from the 10-year average of 1 year time charters these three years for which the rates were well above the average and which were not considered sustainable for the foreseeable future. Similarly, the Company performed the exercise discussed above, for 2018, by excluding from the 10-year average of 1 year time charters the years 2009-2010 and for 2019, by excluding the rates for the year 2010.
Number of Reportable Segments	1
Cash Guarantee [Member]
Property, Plant and Equipment [Line Items]
Restricted Cash and Cash Equivalents, Noncurrent		582
Drybulkers [Member]
Property, Plant and Equipment [Line Items]
Impairment of Long-Lived Assets Held-for-use		0
Building [Member]
Property, Plant and Equipment [Line Items]
Impairment of Long-Lived Assets Held-for-use	$ 0	$ 0	$ 0

Significant Accounting Polici_4

Significant Accounting Policies and Recent Accounting Pronouncements, textuals 1 (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)
Building [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	55 years
Property, plant and equipment, salvage value	$ 0
Automobiles [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	10 years
Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	5 years
Vehicles [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	5 years
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	3 years
Software [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	3 years
Drybulkers [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	25 years

Transactions with Related Par_2

Transactions with Related Parties, textual (Details) $ / shares in Units, $ in Thousands	5 Months Ended	12 Months Ended
	May 30, 2017USD ($)$ / sharesshares	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Jun. 30, 2017USD ($)
Related Party Transaction [Line Items]
Due to related parties, current		$ 85	$ 182
Amortization of debt discount premium		0	(5,000)	$ 0
Income / (loss) from Investments		(1,583)	14	(5,607)
Noncash or Part Noncash Acquisition, Investments Acquired		0	0	3,000
Investments and Other Noncurrent Assets		1,680	3,263
Cash dividends on preferred stock		5,769	5,769	5,769
Altair Travel Agency S.A. [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction		2,032	2,253	2,096
Due to related parties, current		30	63
Performance Shipping Inc [Member]
Related Party Transaction [Line Items]
Equity Method Investment, Realized Gain (Loss) on Disposal				(757)
Income / (loss) from Investments				(5,656)
Equity Method Investment, Other than Temporary Impairment				3,124
Performance Shipping Inc [Member] | Nonredeemable Preferred Stock [Member]
Related Party Transaction [Line Items]
Stock Issued During Period Shares New Issues | shares	100
Preferred Stock Par Or Stated Value Per Share | $ / shares	$ 0.01
Noncash or Part Noncash Acquisition, Investments Acquired	$ 3,000
Preferred Stock Voting Rights	Each share of the Series C Preferred Stock entitles the holder thereof to up to 250,000 votes, subject to a cap such that the aggregate voting power of any holder of Series C Preferred Stock together with its affiliates does not exceed 49.0%, on all matters submitted to a vote of the stockholders of Performance.
Investments and Other Noncurrent Assets		$ 1,500	3,000
Preferred Stock Liquidation Preference Per Share | $ / shares	$ 0
Cash dividends on preferred stock	$ 0
Performance Shipping Inc [Member] | Nonredeemable Preferred Stock [Member] | Maximum [Member]
Related Party Transaction [Line Items]
Preferred Stock Number Of Voting Rights	250,000
Noncash or Part Noncash Acquisition, Interest Acquired	49.00%
Performance Shipping Inc [Member] | Loan Receivable Second Amendment Agreement [Member]
Related Party Transaction [Line Items]
Loan receivable, related parties					$ 42,617
Performance Shipping Inc [Member] | Loan Receivable Refinance [Member]
Related Party Transaction [Line Items]
Debt Instrument, Issuance Date		Jun. 30, 2017
Loan receivable, related parties					82,617
Interest income from loan with Performance Shipping Inc.			7,055	3,855
Interest-bearing discount premium payable on the termination date					$ 5,000
Amortization of debt discount premium			$ (5,000)
Performance Shipping Inc [Member] | First Twelve Months [Member] | Loan Receivable Refinance [Member]
Related Party Transaction [Line Items]
Fixed interest rate from agreement with Performance Shipping Inc.			6.00%
Performance Shipping Inc [Member] | Until Full Repayment [Member] | Loan Receivable Refinance [Member]
Related Party Transaction [Line Items]
Fixed interest rate from agreement with Performance Shipping Inc.			9.00%
Steamship Shipbroking Enterprises Inc [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction		$ 1,998	$ 1,850	$ 1,800
Due to related parties, current		$ 0	$ 0

Transactions with Related Par_3

Transactions with Related Parties, textual 2 (Details) $ / shares in Units, $ in Thousands	1 Months Ended	2 Months Ended		12 Months Ended
	Jan. 31, 2019USD ($)$ / sharesshares	Feb. 15, 2019USD ($)	Feb. 14, 2019USD ($)	Dec. 31, 2019USD ($)$ / sharesshares	Dec. 31, 2018USD ($)$ / shares	Dec. 31, 2017USD ($)
Related Party Transaction [Line Items]
Income / (loss) from Investments				$ (1,583)	$ 14	$ (5,607)
Management Fee Expense				2,155	2,394	1,883
Due to related parties, current				85	182
Proceeds from Sale of Property, Plant, and Equipment				$ 41,326	14,578	2,032
Diana Wilhelmsen Management Limited [Member]
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage				50.00%
Equity Method Investments				$ 180	263
Income / (loss) from Investments				83	14	49
Diana Wilhelmsen Management Limited [Member] | Management Agreements [Member]
Related Party Transaction [Line Items]
Management Fee Expense				2,155	2,394	1,883
Commercial fees to related party				353	453	$ 260
Due to related parties, current				$ 55	$ 119
Preferred Stock [Member]
Related Party Transaction [Line Items]
Preferred Stock Par Or Stated Value Per Share | $ / shares				$ 0.01	$ 0.01
Preferred Stock [Member] | Series C Preferred Stock [Member]
Related Party Transaction [Line Items]
Issuance of new shares | shares	10,675			10,675
Preferred Stock Par Or Stated Value Per Share | $ / shares	$ 0.01			$ 0.01
Proceeds from issuance of preferred stock, value	$ 1,066
Danae and Dione [Member]
Related Party Transaction [Line Items]
Number Of Vessels To Be Disposed		2
Danae [Member]
Related Party Transaction [Line Items]
Proceeds from Sale of Property, Plant, and Equipment			$ 7,200
Dione [Member]
Related Party Transaction [Line Items]
Proceeds from Sale of Property, Plant, and Equipment		$ 7,200

Vessels, textual (Details)

Vessels, textual (Details) $ / shares in Units, $ in Thousands

2 Months Ended

3 Months Ended

5 Months Ended

7 Months Ended

10 Months Ended

11 Months Ended

12 Months Ended

Feb. 15, 2019USD ($)

Feb. 14, 2019USD ($)

Apr. 12, 2019USD ($)

Jun. 13, 2019USD ($)

Jul. 25, 2019USD ($)

Nov. 07, 2019USD ($)

Nov. 30, 2018USD ($)

Dec. 31, 2019USD ($)$ / shares

Dec. 24, 2019USD ($)

Dec. 31, 2018USD ($)$ / shares

Dec. 31, 2017USD ($)$ / shares

Sep. 30, 2017USD ($)

Property, Plant and Equipment [Line Items]

Net income / (loss) attributed to common stockholders

$ (16,304)

$ 10,811

$ (517,483)

Loss per share, basic and diluted | $ / shares

$ (0.17)

$ 0.1

$ (5.41)

Impairment charges

$ 13,987

$ 0

$ 442,274

Insurance maximum amount

1,000,000

Insurance Recoveries

0

0

10,879

Loss from sale of vessels

6,171

1,448

0

Vessel disposal

47,370

15,583

Proceeds from Sale of Property, Plant, and Equipment

$ 41,326

14,578

2,032

Triton [Member]

Property, Plant and Equipment [Line Items]

Proceeds from Sale of Property, Plant, and Equipment

$ 7,350

Alcyon [Member]

Property, Plant and Equipment [Line Items]

Proceeds from Sale of Property, Plant, and Equipment

$ 7,450

Triton and Alcyon [Member]

Property, Plant and Equipment [Line Items]

Loss from sale of vessels

$ (1,448)

Number Of Vessels To Be Disposed

2

Vessel Delivery Date

Dec. 31, 2018

Danae [Member]

Property, Plant and Equipment [Line Items]

Proceeds from Sale of Property, Plant, and Equipment

$ 7,200

Dione [Member]

Property, Plant and Equipment [Line Items]

Proceeds from Sale of Property, Plant, and Equipment

$ 7,200

Danae and Dione [Member]

Property, Plant and Equipment [Line Items]

Number Of Vessels To Be Disposed

2

Vessel Delivery Date

Apr. 30, 2019

Erato [Member]

Property, Plant and Equipment [Line Items]

Proceeds from Sale of Property, Plant, and Equipment

$ 7,000

Vessel Delivery Date

Jun. 30, 2019

Thetis [Member]

Property, Plant and Equipment [Line Items]

Proceeds from Sale of Property, Plant, and Equipment

$ 6,400

Vessel Delivery Date

Jul. 31, 2019

Nirefs [Member]

Property, Plant and Equipment [Line Items]

Proceeds from Sale of Property, Plant, and Equipment

$ 6,710

Vessel Delivery Date

Sep. 30, 2019

Clio [Member]

Property, Plant and Equipment [Line Items]

Proceeds from Sale of Property, Plant, and Equipment

$ 7,400

Vessel Delivery Date

Nov. 30, 2019

Danae, Dione, Thetis and Calipso [Member]

Property, Plant and Equipment [Line Items]

Impairment charges

$ 10,567

Loss from sale of vessels

$ (6,171)

Melite [Member]

Property, Plant and Equipment [Line Items]

Property, plant and equipment, salvage value

$ 2,515

Impairment charges

19,807

Insurance maximum amount

14,000

Insurance Recoveries

11,528

Calipso [Member]

Property, Plant and Equipment [Line Items]

Contract Price Of Vessels To Be Sold

$ 7,275

Impaired Vessels [Member]

Property, Plant and Equipment [Line Items]

Number Of Vessels Impaired

3

Net income / (loss) attributed to common stockholders

$ (3,419)

Loss per share, basic and diluted | $ / shares

$ (0.04)

Impairment charges

$ 2,386

422,466

Deferred Charges Net [Member]

Property, Plant and Equipment [Line Items]

Impairment charges

1,033

$ 3,362

Deferred Charges Net [Member] | Danae, Dione, Thetis and Calipso [Member]

Property, Plant and Equipment [Line Items]

Impairment charges

$ 1,102

Vessels, detail (Details)

Vessels, detail (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Movement in Property, Plant and Equipment [Roll Forward]
Vessels, Beginning Balance	$ 1,228,591	$ 1,267,231
Additions for improvements	2,804	2,573
Impairment	(55,396)
Vessel held for sale	(7,130)
Vessel disposal	(72,335)	(41,213)
Vessels, Ending Balance	1,096,534	1,228,591
Movement in Accumulated Depreciation, Depletion and Amortization, Property, Plant and Equipment [Roll Forward]
Accumulated depreciation, Beginning Balance	(237,188)	(213,653)
Impairment	43,545
Vessel disposal	24,965	25,630
Depreciation for the year	(45,559)	(49,165)
Accumulated depreciation, Ending Balance	(214,237)	(237,188)
Property, Plant and Equipment, Net, by Type [Abstract]
Vessels net book value, Beginning Balance	991,403	1,053,578
Additions for improvements	2,804	2,573
Impairment	(11,851)
Vessel held for sale	(7,130)
Vessel disposal	(47,370)	(15,583)
Depreciation for the year	(45,559)	(49,165)
Vessels net book value, Ending Balance	$ 882,297	$ 991,403

Property and equipment, net, de

Property and equipment, net, detail (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Movement in Property, Plant and Equipment [Roll Forward]
Property and Equipment, Beginning Balance	$ 26,935	$ 26,683
Additions in property and equipment	125	252
Property and Equipment, Ending Balance	27,060	26,935
Movement in Accumulated Depreciation, Depletion and Amortization, Property, Plant and Equipment [Roll Forward]
Accumulated Depreciation, Property and Equipment, Beginning Balance	(4,510)	(4,033)
Depreciation for the year	(473)	(477)
Accumulated Depreciation, Property and Equipment, Ending Balance	(4,983)	(4,510)
Property, Plant and Equipment, Net, by Type [Abstract]
Property And Equipment Net, Beginning Balance	22,425	22,650
Additions in property and equipment	125	252
Depreciation for the year	(473)	(477)
Property And Equipment Net, Ending Balance	$ 22,077	$ 22,425

Long-term debt, current and n_2

Long-term debt, current and non-current, details (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Long-term debt, current and non-current [Abstract]
9.5% Senior Unsecured Bond	$ 100,000	$ 100,000
Secured Term Loans	378,298	434,850
Total debt outstanding	478,298	534,850
Less related deferred financing costs	(3,347)	(4,303)
Total debt, net of deferred financing costs	474,951	530,547
Less: Current portion of long term debt, net of deferred financing costs current	(40,205)	(96,434)
Long-term debt, net of current portion and deferred financing costs, non-current	$ 434,746	$ 434,113

Long-term debt, current and n_3

Long-term debt, current and non-current, textual (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2015
Debt Instrument [Line Items]
Trading Symbol	DSX
Unsecured Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Issuance Date	May 20, 2015
Debt Instrument, Face Amount	$ 63,250
Debt Instrument, Frequency of Periodic Payments	quarterly
Debt Instrument, Interest Rate, Stated Percentage	8.50%
Debt Instrument, Face Amount Per Note	$ 25
Debt Instrument, Redemption Price, Percentage	100.00%
Trading Symbol	DSXN
Debt Instrument Redemption Period, End Date	Oct. 29, 2018
Unsecured Senior Notes [Member] | Officers And Directors [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Unsecured Debt		$ 12,750
Senior Unsecured Bond [Member]
Debt Instrument [Line Items]
Debt Instrument, Issuance Date	Sep. 27, 2018
Debt Instrument, Face Amount	$ 100,000
Debt Instrument, Frequency of Periodic Payments	semi-annually
Debt Instrument, Maturity Date	Sep. 27, 2023
Debt Instrument, Interest Rate, Stated Percentage	9.50%
Trading Symbol	DIASH01
Debt Instrument, Call Feature	The bond is callable in whole or in parts in three years at a price equal to 103% of nominal value; in four years at a price equal to 101.9% of the nominal value and in four and a half years at a price equal to 100% of nominal value
Senior Unsecured Bond [Member] | Additional Issuance of Bond on one or more occasions [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 25,000
Senior Unsecured Bond [Member] | Officers And Directors [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Unsecured Debt	$ 16,200
Senior Unsecured Bond [Member] | In three years [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	103.00%
Senior Unsecured Bond [Member] | In four years [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	101.90%
Senior Unsecured Bond [Member] | In four and a half years [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	100.00%

Long-term debt, current and n_4

Long-term debt, current and non-current, textuals 2 (Details) - Secured Debt [Member] $ in Thousands	2 Months Ended	4 Months Ended	5 Months Ended		10 Months Ended	12 Months Ended
	Feb. 15, 2012USD ($)	May 10, 2016USD ($)	May 22, 2014USD ($)	May 18, 2012USD ($)	Nov. 12, 2009USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Debt Instrument [Line Items]
Debt Instrument, Frequency of Periodic Payments						quarterly or semi-annual installments plus one balloon installment
Debt Instrument, Description of Variable Rate Basis						LIBOR plus margin ranging from 1% to 2.5%
Debt Instrument, Maturity Date Range, Start						Mar. 31, 2021
Debt Instrument, Maturity Date Range, End						Jan. 31, 2032
Long-term Debt, Weighted Average Interest Rate						4.56%	4.31%
Number Of Vessels Collateral For Debt						32
Debt Instrument Collateral Amount						$ 765,736
Compensating Balance, Amount						$ 21,000	$ 24,000
Minimum [Member]
Debt Instrument [Line Items]
Loan Margin Percentage						1.00%
Maximum [Member]
Debt Instrument [Line Items]
Loan Margin Percentage						2.50%
Bremer Landesbank [Member]
Debt Instrument [Line Items]
Proceeds From Issuance Of Secured Debt					$ 40,000
Debt Instrument, Number of installments						40
Debt Instrument, Frequency of Periodic Payments						quarterly
Debt Instrument, Periodic Payment, Principal						$ 900
Debt Instrument, Baloon Payment						$ 4,000
Debt Instrument, Maturity Date						Nov. 12, 2019
Debt Instrument, Description of Variable Rate Basis						LIBOR plus a margin
Loan Margin Percentage						2.15%
Export-Import Bank of China and DnB NOR Bank ASA [Member] | First Tranche [Member]
Debt Instrument [Line Items]
Proceeds From Issuance Of Secured Debt	$ 37,450
Debt Instrument, Number of installments						40
Debt Instrument, Frequency of Periodic Payments						quarterly
Debt Instrument, Periodic Payment, Principal						$ 628
Debt Instrument, Baloon Payment						$ 12,332
Debt Instrument, Maturity Date						Feb. 15, 2022
Debt Instrument, Description of Variable Rate Basis						LIBOR plus a margin
Loan Margin Percentage						2.50%
Export-Import Bank of China and DnB NOR Bank ASA [Member] | Second Tranche [Member]
Debt Instrument [Line Items]
Proceeds From Issuance Of Secured Debt				$ 34,640
Debt Instrument, Number of installments						40
Debt Instrument, Frequency of Periodic Payments						quarterly
Debt Instrument, Periodic Payment, Principal						$ 581
Debt Instrument, Baloon Payment						$ 11,410
Debt Instrument, Maturity Date						May 18, 2022
Debt Instrument, Description of Variable Rate Basis						LIBOR plus a margin
Loan Margin Percentage						2.50%
Export-Import Bank of China and DnB NOR Bank ASA [Member] | Second Agreement [Member]
Debt Instrument [Line Items]
Proceeds From Issuance Of Secured Debt			$ 15,000
Debt Instrument, Number of installments						19
Debt Instrument, Frequency of Periodic Payments						quarterly
Debt Instrument, Periodic Payment, Principal						$ 250
Debt Instrument, Baloon Payment						$ 10,250
Debt Instrument, Maturity Date						Feb. 22, 2019
Debt Instrument, Description of Variable Rate Basis						LIBOR plus a margin
Loan Margin Percentage						3.00%
Export-Import Bank of China and DnB NOR Bank ASA [Member] | Third Agreement [Member]
Debt Instrument [Line Items]
Proceeds From Issuance Of Secured Debt		$ 13,510
Debt Instrument, Baloon Payment						$ 12,242
Debt Instrument, Maturity Date						Jan. 4, 2019
Debt Instrument, Description of Variable Rate Basis						LIBOR plus a margin
Loan Margin Percentage						3.00%
Export-Import Bank of China and DnB NOR Bank ASA [Member] | First Seven Installments [Member] | Third Agreement [Member]
Debt Instrument [Line Items]
Debt Instrument, Number of installments						7
Debt Instrument, Frequency of Periodic Payments						quarterly
Debt Instrument, Periodic Payment, Principal						$ 20
Export-Import Bank of China and DnB NOR Bank ASA [Member] | From Eighth to Eleventh Installment [Member] | Third Agreement [Member]
Debt Instrument [Line Items]
Debt Instrument, Number of installments						4
Debt Instrument, Frequency of Periodic Payments						quarterly
Debt Instrument, Periodic Payment, Principal						$ 283

Long-term debt, current and n_5

Long-term debt, current and non-current, textuals 3 (Details) - Secured Debt [Member]	Jan. 13, 2014USD ($)	Mar. 19, 2015USD ($)	Jul. 16, 2018USD ($)	Sep. 15, 2011USD ($)	Dec. 31, 2019USD ($)	Dec. 19, 2014USD ($)
Debt Instrument [Line Items]
Debt Instrument, Frequency of Periodic Payments					quarterly or semi-annual installments plus one balloon installment
Debt Instrument, Description of Variable Rate Basis					LIBOR plus margin ranging from 1% to 2.5%
Emporiki Bank of Greece S.A. [Member]
Debt Instrument [Line Items]
Proceeds From Issuance Of Secured Debt				$ 15,000,000
Debt Instrument, Number of installments					20
Debt Instrument, Frequency of Periodic Payments					semi-annual
Debt Instrument, Periodic Payment, Principal					$ 500,000
Debt Instrument, Baloon Payment					$ 5,000,000
Debt Instrument, Maturity Date					Sep. 15, 2021
Debt Instrument, Description of Variable Rate Basis					LIBOR plus a margin of 2.5% per annum, or 1% for such loan amount that is equivalently secured by cash pledge in favor of the bank
Loan Margin Percentage					2.50%
Emporiki Bank of Greece S.A. [Member] | Loan Amount Secured by Cash Pledge in Favor of the Bank [Member]
Debt Instrument [Line Items]
Loan Margin Percentage					1.00%
Commonwealth Bank of Australia, London Branch [Member]
Debt Instrument [Line Items]
Proceeds From Issuance Of Secured Debt	$ 9,500,000
Debt Instrument, Number of installments					32
Debt Instrument, Frequency of Periodic Payments					quarterly
Debt Instrument, Periodic Payment, Principal					$ 156,000
Debt Instrument, Baloon Payment					$ 4,500,000
Debt Instrument, Maturity Date					Jan. 13, 2022
Debt Instrument, Description of Variable Rate Basis					LIBOR plus a margin
Loan Margin Percentage					2.25%
BNP Paribas [Member]
Debt Instrument [Line Items]
Proceeds From Issuance Of Secured Debt						$ 53,500,000
Debt Instrument, Number of installments					14
Debt Instrument, Frequency of Periodic Payments					semi-annual
Debt Instrument, Periodic Payment, Principal					$ 1,574,000
Debt Instrument, Baloon Payment					$ 31,466,000
Debt Instrument, Maturity Date					Nov. 30, 2021
Debt Instrument, Description of Variable Rate Basis					LIBOR plus a margin
Loan Margin Percentage					2.00%
BNP Paribas [Member] | Second Agreement [Member]
Debt Instrument [Line Items]
Proceeds From Issuance Of Secured Debt			$ 75,000,000
Debt Instrument, Number of installments					20
Debt Instrument, Frequency of Periodic Payments					quarterly
Debt Instrument, Periodic Payment, Principal					$ 1,562,500
Debt Instrument, Baloon Payment					$ 43,750,000
Debt Instrument, Maturity Date					Jul. 16, 2023
Debt Instrument, Description of Variable Rate Basis					LIBOR plus a margin
Loan Margin Percentage					2.30%
Nordea Bank AB, London Branch [Member]
Debt Instrument [Line Items]
Proceeds From Issuance Of Secured Debt		$ 93,080,000
Debt Instrument, Number of installments					24
Debt Instrument, Frequency of Periodic Payments					quarterly
Debt Instrument, Periodic Payment, Principal					$ 1,862,000
Debt Instrument, Baloon Payment					$ 48,402,000
Debt Instrument, Maturity Date					Mar. 19, 2021
Debt Instrument, Description of Variable Rate Basis					LIBOR plus a margin
Loan Margin Percentage					2.10%

Long-term debt, current and n_6

Long-term debt, current and non-current, textuals 4 (Details) - Secured Debt [Member]	Jan. 04, 2017USD ($)	Mar. 14, 2019USD ($)	Mar. 30, 2016USD ($)	Mar. 30, 2015USD ($)	Apr. 30, 2015USD ($)	Jun. 27, 2019USD ($)	Oct. 06, 2015USD ($)	Nov. 19, 2015USD ($)	Dec. 31, 2019USD ($)
Debt Instrument [Line Items]
Debt Instrument, Frequency of Periodic Payments									quarterly or semi-annual installments plus one balloon installment
Debt Instrument, Description of Variable Rate Basis									LIBOR plus margin ranging from 1% to 2.5%
ABN AMRO Bank N.V. [Member]
Debt Instrument [Line Items]
Proceeds From Issuance Of Secured Debt				$ 50,160,000
Debt Instrument, Number of installments									24
Debt Instrument, Frequency of Periodic Payments									quarterly
Debt Instrument, Periodic Payment, Principal									$ 994,000
Debt Instrument, Baloon Payment									$ 26,310,000
Debt Instrument, Maturity Date									Mar. 30, 2021
Debt Instrument, Description of Variable Rate Basis									LIBOR plus a margin
Loan Margin Percentage									2.00%
ABN AMRO Bank N.V. [Member] | Second Agreement [Member]
Debt Instrument [Line Items]
Proceeds From Issuance Of Secured Debt			$ 25,755,000
Debt Instrument, Number of installments									8
Debt Instrument, Frequency of Periodic Payments									quarterly
Debt Instrument, Periodic Payment, Principal									$ 855,000
Debt Instrument, Baloon Payment									$ 18,915,000
Debt Instrument, Maturity Date									Jun. 30, 2019
Debt Instrument, Description of Variable Rate Basis									LIBOR plus a margin
Loan Margin Percentage									3.00%
ABN AMRO Bank N.V. [Member] | Third Agreement [Member]
Debt Instrument [Line Items]
Proceeds From Issuance Of Secured Debt						$ 25,000,000
Debt Instrument, Number of installments									20
Debt Instrument, Frequency of Periodic Payments									quarterly
Debt Instrument, Periodic Payment, Principal									$ 800,000
Debt Instrument, Baloon Payment									$ 9,000,000
Debt Instrument, Maturity Date									Jun. 28, 2024
Debt Instrument, Description of Variable Rate Basis									LIBOR plus a margin
Loan Margin Percentage									2.25%
Danish Ship FInance A/S [Member]
Debt Instrument [Line Items]
Proceeds From Issuance Of Secured Debt					$ 30,000,000
Debt Instrument, Number of installments									28
Debt Instrument, Frequency of Periodic Payments									quarterly
Debt Instrument, Periodic Payment, Principal									$ 500,000
Debt Instrument, Baloon Payment									$ 16,000,000
Debt Instrument, Maturity Date									Apr. 30, 2022
Debt Instrument, Description of Variable Rate Basis									LIBOR plus a margin
Loan Margin Percentage									2.15%
ING Bank N.V. [Member] | First Tranche [Member]
Debt Instrument [Line Items]
Proceeds From Issuance Of Secured Debt								$ 27,950,000
Debt Instrument, Number of installments									28
Debt Instrument, Frequency of Periodic Payments									quarterly
Debt Instrument, Periodic Payment, Principal									$ 466,000
Debt Instrument, Baloon Payment									$ 14,907,000
Debt Instrument, Maturity Date									Nov. 19, 2022
Debt Instrument, Description of Variable Rate Basis									LIBOR plus a margin
Loan Margin Percentage									1.65%
ING Bank N.V. [Member] | Second Tranche [Member]
Debt Instrument [Line Items]
Proceeds From Issuance Of Secured Debt							$ 11,733,000
Debt Instrument, Number of installments									28
Debt Instrument, Frequency of Periodic Payments									quarterly
Debt Instrument, Periodic Payment, Principal									$ 293,000
Debt Instrument, Baloon Payment									$ 3,520,000
Debt Instrument, Maturity Date									Oct. 6, 2022
Debt Instrument, Description of Variable Rate Basis									LIBOR plus a margin
Loan Margin Percentage									1.65%
Export-Import Bank of China [Member]
Debt Instrument [Line Items]
Proceeds From Issuance Of Secured Debt	$ 57,240,000
Debt Instrument, Number of installments									60
Debt Instrument, Frequency of Periodic Payments									quarterly
Debt Instrument, Periodic Payment, Principal									$ 954,000
Debt Instrument, Maturity Date									Jan. 4, 2032
Debt Instrument, Description of Variable Rate Basis									LIBOR plus a margin
Loan Margin Percentage									2.30%
DNB Bank ASA [Member]
Debt Instrument [Line Items]
Proceeds From Issuance Of Secured Debt		$ 19,000,000
Debt Instrument, Number of installments									20
Debt Instrument, Frequency of Periodic Payments									quarterly
Debt Instrument, Periodic Payment, Principal									$ 477,300
Debt Instrument, Baloon Payment									$ 9,454,000
Debt Instrument, Maturity Date									Mar. 14, 2024
Debt Instrument, Description of Variable Rate Basis									LIBOR plus a margin
Loan Margin Percentage									2.40%

Long-term debt, current and n_7

Long-term debt, current and non-current, details 1 (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Maturities of Long-term Debt [Abstract]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	$ 41,242
Long-term Debt, Maturities, Repayments of Principal in Year Two	143,853
Long-term Debt, Maturities, Repayments of Principal in Year Three	83,827
Long-term Debt, Maturities, Repayments of Principal in Year Four	157,363
Long-term Debt, Maturities, Repayments of Principal in Year Five	24,347
Long-term Debt, Maturities, Repayments of Principal after Year Five	27,666
Total debt outstanding	$ 478,298	$ 534,850

Commitments and Contingencies,

Commitments and Contingencies, textual (Details) $ in Billions	12 Months Ended
	Dec. 31, 2019USD ($)
Environmental Remediation Obligations [Abstract]
Insurance Coverage For Pollution	$ 1

Commitments and Contingencies_2

Commitments and Contingencies, detail (Details) $ in Thousands	Dec. 31, 2019USD ($)
Fixed non-cancellable revenues under time charter contracts [Abstract]
Year 1	$ 88,112
Year 2	1,412
Total	$ 89,524

Capital Stock and Changes in _3

Capital Stock and Changes in Capital Accounts, textuals (Details) $ / shares in Units, $ in Thousands	1 Months Ended		2 Months Ended	3 Months Ended			12 Months Ended
	Jul. 31, 2019$ / sharesshares	Jan. 31, 2019USD ($)$ / sharesshares	Dec. 16, 2019$ / sharesshares	Oct. 31, 2019$ / sharesshares	Jun. 30, 2019$ / sharesshares	Mar. 31, 2019$ / sharesshares	Dec. 31, 2019USD ($)$ / sharesshares	Dec. 31, 2018USD ($)$ / sharesshares	Dec. 31, 2017USD ($)$ / sharesshares
Class Of Stock [Line Items]
Cash dividends on preferred stock | $							$ 5,769	$ 5,769	$ 5,769
Payments for Repurchase of Common Stock | $							49,679	15,157	0
Proceeds from issuance of stock, net of expenses | $							$ 960	$ 0	77,311
Preferred Stock [Member]
Class Of Stock [Line Items]
Preferred Stock, Shares Authorized							25,000,000	25,000,000
Preferred Stock Par Or Stated Value Per Share | $ / shares							$ 0.01	$ 0.01
Preferred Stock [Member] | Series A Participating Preferred Stock [Member]
Class Of Stock [Line Items]
Preferred Stock, Shares Authorized							1,000,000	1,000,000
Preferred Stock, Shares Issued							0	0
Preferred Stock, Shares Outstanding							0	0
Preferred Stock [Member] | Series B Participating Preferred Stock [Member]
Class Of Stock [Line Items]
Preferred Stock, Shares Authorized							5,000,000	5,000,000
Preferred Stock Par Or Stated Value Per Share | $ / shares							$ 0.01	$ 0.01
Preferred Stock, Shares Issued							2,600,000	2,600,000
Preferred Stock, Shares Outstanding							2,600,000	2,600,000
Shares Issued Price Per Share | $ / shares							$ 25	$ 25
Preferred Stock Liquidation Preference Per Share | $ / shares							$ 25	$ 25
Preferred Stock Voting Rights							Holders of series B preferred shares have no voting rights other than the ability, subject to certain exceptions, to elect one director if dividends for six quarterly dividend periods (whether or not consecutive) are in arrears and certain other limited protective voting rights.
Preferred Stock Dividend Rate Percentage							8.875%
Preferred Stock Dividend Rate Per Dollar Amount | $ / shares							$ 2.21875
Cash dividends on preferred stock | $							$ 5,769	$ 5,769	$ 5,769
Preferred Stock, Redemption Price Per Share | $ / shares							$ 25
Preferred Stock [Member] | Series C Participating Preferred Stock [Member]
Class Of Stock [Line Items]
Preferred Stock, Shares Authorized							10,675
Stock Issued During Period Shares New Issues		10,675					10,675
Preferred Stock Par Or Stated Value Per Share | $ / shares		$ 0.01					$ 0.01
Preferred Stock, Shares Issued							10,675
Preferred Stock, Shares Outstanding							10,675
Preferred Stock Liquidation Preference Per Share | $ / shares							$ 0
Preferred Stock Voting Rights							The Series C Preferred Stock votes with the common shares of the Company, and each share entitles the holder thereof to 1,000 votes on all matters submitted to a vote of the stockholders of the Company.
Cash dividends on preferred stock | $							$ 0
Proceeds from issuance of preferred stock | $		$ 1,066
Preferred Stock Number Of Voting Rights							1,000
Proceeds from issuance of stock, net of expenses | $		$ 960
Common Stock [Member]
Class Of Stock [Line Items]
Stock Issued During Period Shares New Issues									20,125,000
Shares Issued Price Per Share | $ / shares									$ 4
Proceeds from Issuance of Common Stock | $									$ 77,311
Stock repurchased and retired, shares	2,000,000		2,739,726	2,816,900	3,125,000	3,889,386	14,571,012	4,166,666
Treasury Stock Acquired, Average Cost Per Share | $ / shares	$ 3.75		$ 3.65	$ 3.55	$ 3.4	$ 2.8		$ 3.6
Payments for Repurchase of Common Stock | $							$ 49,679	$ 15,157
Common Stock [Member] | Directors And Officers [Member]
Class Of Stock [Line Items]
Stock Issued During Period Shares New Issues									5,500,000

Capital Stock and Changes in _4

Capital Stock and Changes in Capital Accounts, textuals 1 (Details) - Equity Incentive Plan 2014 - shares	Dec. 31, 2019	May 31, 2018	Nov. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Incentive Plan, Number of Shares Authorized		13,000,000	5,000,000
Common Stock Capital Shares Reserved For Future Issuance	7,124,759

Capital Stock and Changes in _5

Capital Stock and Changes in Capital Accounts, detail (Details) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Non vested restricted common stock, beginning balance	3,761,633	3,641,117	3,942,666
Granted	2,000,000	1,800,000	1,310,000
Vested	(1,928,400)	(1,679,484)	(1,611,549)
Non vested restricted common stock, ending balance	3,833,233	3,761,633	3,641,117
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted Average Grant Date Fair Value, beginning balance	$ 4.04	$ 4.3	$ 4.89
Weighted Average Grant Date Fair Value, Granted	2.99	3.82	3.95
Weighted Average Grant Date Fair Value, Vested	3.75	4.38	5.46
Weighted Average Grant Date Fair Value, enging balance	$ 3.63	$ 4.04	$ 4.3

Capital Stock and Changes in _6

Capital Stock and Changes in Capital Accounts, textuals 2 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Arrangements with Employees and Nonemployees [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years	3 years	3 years
Compensation cost on restricted stock	$ 7,581	$ 7,279	$ 8,232
Unrecognized cost for unvested restricted shares	$ 8,505	$ 10,106
Total Compensation Cost Not yet Recognized, Period for Recognition	10 months 6 days

Capital Stock and Changes in _7

Capital Stock and Changes in Capital Accounts, textuals 3 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	May 22, 2014
Equity [Abstract]
Stock Repurchase Program, Authorized Amount				$ 100,000
Repurchase of common stock, shares	0	0	0

Interest and Finance Costs, det

Interest and Finance Costs, detail (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Interest and Finance Costs [Abstract]
Interest expense	$ 27,963	$ 28,299	$ 24,978
Amortization of financing costs	1,126	1,939	1,455
Loan expenses	343	268	195
Interest and finance costs	$ 29,432	$ 30,506	$ 26,628

Interest and Finance Costs, tex

Interest and Finance Costs, textual (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Interest and Finance Costs [Abstract]
Interest Costs Incurred	$ 27,963	$ 28,299	$ 24,991
Interest Costs, Capitalized During Period	$ 0	$ 0	$ 13

Earnings_(loss) per Share, deta

Earnings/(loss) per Share, detail (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Abstract]
Net income/(loss)	$ (10,535)	$ 16,580	$ (511,714)
Less dividends on series B preferred shares	(5,769)	(5,769)	(5,769)
Net income/(loss) attributed to common stockholders	$ (16,304)	$ 10,811	$ (517,483)
Weighted average number of common shares, basic	95,191,116	103,736,742	95,731,093
Incremental shares	0	979,141	0
Weighted average number of common shares, diluted	95,191,116	104,715,883	95,731,093
Earnings/(loss) per share, basic and diluted	$ (0.17)	$ 0.1	$ (5.41)

Income Taxes, textual (Details)

Income Taxes, textual (Details)	Dec. 31, 2019
Income Tax Uncertainties [Abstract]
Shipping Income Percentage	50.00%
Tax Rate On US Source Shipping Income	4.00%

Financial Instruments, textual

Financial Instruments, textual (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)
Financial Instruments and Fair Value Disclosures [Abstract]
Trading Symbol	DSX
Senior Unsecured Bond [Member]
Financial Instruments and Fair Value Disclosures [Abstract]
Trading Symbol	DIASH01
Fair Value, Inputs, Level 1 [Member] | Senior Unsecured Bond [Member]
Financial Instruments and Fair Value Disclosures [Abstract]
Bonds Fair Value Disclosure	$ 99,250
Impaired Vessels [Member]
Financial Instruments and Fair Value Disclosures [Abstract]
Number Of Vessels Impaired	3
Impaired Vessels [Member] | Fair Value, Inputs, Level 1 [Member]
Financial Instruments and Fair Value Disclosures [Abstract]
Number Of Vessels Impaired	1
Impaired Vessels [Member] | Fair Value, Inputs, Level 2 [Member]
Financial Instruments and Fair Value Disclosures [Abstract]
Number Of Vessels Impaired	2

Subsequent Events, textual (Det

Subsequent Events, textual (Details) - USD ($) $ / shares in Units, $ in Thousands

Jan. 15, 2020

Mar. 27, 2020

Feb. 07, 2020

Jan. 29, 2020

Feb. 26, 2020

Feb. 19, 2020

Mar. 30, 2020

Dec. 31, 2019

Dec. 31, 2018

Dec. 31, 2017

Feb. 28, 2020

May 31, 2018

Nov. 30, 2014

Subsequent Event [Line Items]

Proceeds from Sale of Property, Plant, and Equipment

$ 41,326

$ 14,578

$ 2,032

Compensation cost on restricted stock

$ 7,581

$ 7,279

$ 8,232

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period

3 years

3 years

3 years

Repurchase of common stock, shares

0

0

0

Payments for Repurchase of Common Stock

$ 49,679

$ 15,157

$ 0

Series B Preferred Stock [Member] | Subsequent Events [Member]

Subsequent Event [Line Items]

Dividends payable on series B preferred stock, per share

$ 0.5546875

Dividends payable on series B preferred stock, current

$ 1,442

Dividends Payable, Date of Record

Jan. 14, 2020

Common Stock [Member] | Subsequent Events [Member]

Subsequent Event [Line Items]

Stock repurchased and retired, shares

3,030,303

Treasury Stock Acquired, Average Cost Per Share

$ 3.3

Share Repurchase Plan Authorized in May 2014 [Member] | Common Stock [Member] | Subsequent Events [Member]

Subsequent Event [Line Items]

Repurchase of common stock, shares

1,088,034

Payments for Repurchase of Common Stock

$ 1,895

Norfolk [Member] | Subsequent Events [Member]

Subsequent Event [Line Items]

Contract Price Of Vessels To Be Sold

$ 9,350

Proceeds from Sale of Property, Plant, and Equipment

$ 8,750

Vessel Delivery Date

Mar. 11, 2020

Performance Shipping Inc [Member] | Series C Preferred Stock [Member] | Subsequent Events [Member]

Subsequent Event [Line Items]

Offer To Repurchase Preferred Stock

$ 1,500

Proceeds From Sale Of Stock

$ 1,500

Equity Incentive Plan 2014

Subsequent Event [Line Items]

Stock Incentive Plan, Number of Shares Authorized

13,000,000

5,000,000

Equity Incentive Plan 2014 | Subsequent Events [Member]

Subsequent Event [Line Items]

Stock Incentive Plan, Number of Shares Authorized

2,200,000

Compensation cost on restricted stock

$ 5,984

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period

3 years