Prospect Global Resources (PGRX) 10-Q 14 Feb 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Dec. 31, 2013	Feb. 14, 2014
Document and Entity Information	'	'
Entity Registrant Name	'PROSPECT GLOBAL RESOURCES INC.	'
Entity Central Index Key	'0001477032	'
Document Type	'10-Q	'
Document Period End Date	31-Dec-13	'
Amendment Flag	'false	'
Current Fiscal Year End Date	'--03-31	'
Entity Current Reporting Status	'Yes	'
Entity Filer Category	'Smaller Reporting Company	'
Entity Common Stock, Shares Outstanding	'	4,940,456
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'

CONSOLIDATED_BALANCE_SHEETS

CONSOLIDATED BALANCE SHEETS (USD $)	Dec. 31, 2013		Mar. 31, 2013
In Thousands, unless otherwise specified
Current assets	'		'
Cash and cash equivalents	$51		$1,024
Related party receivable	25		25
Other current assets	297		1,171
Total current assets	373		2,220
Noncurrent assets	'		'
Land	399		380
Mineral properties	13,047		13,690
Equipment (net of accumulated depreciation of $283 and $132, respectively)	394		613
Other long-term assets	75		104
Total noncurrent assets	13,915		14,787
Total assets	14,288		17,007
Current Liabilities	'		'
Accounts payable and accrued liabilities	4,693		7,356
Grandhaven Obligation (Note 10)	4,060		4,060
Current portion of long-term debt, net	116,536		122,032
Tax compensation on note payable (Note 8)	19,152		6,226
Accrued interest	10,875		7,251
Derivative warrant liabilities (Note 14)	12,481		'
Total current liabilities	167,797		146,925
Noncurrent liabilities	'		'
Other noncurrent liabilities	650		'
Total noncurrent liabilities	650		'
Total liabilities	168,447		146,925
Commitments and Contingencies (Note 16)	'		'
Redeemable preferred stock: $0.001 par value; 100,000,000 shares authorized; 15,000,000 shares outstanding with a liquidation preference of $15,000,000 and nil at December 31, 2013 and March 31, 2013, respectively. (Note 9)	4,996		'
EQUITY	'		'
Common stock: $0.001 par value; 300,000,000 shares authorized; 4,191,658 and 1,451,914 issued and outstanding at December 31, 2013 and March 31, 2013, respectively	4	[1]	1	[1]
Additional paid-in capital	39,025	[1]	30,335	[1]
Losses accumulated in the exploration stage	-198,184	[1]	-160,254	[1]
Total shareholders' deficit	-159,155	[1]	-129,918	[1]
Total liabilities, redeemable preferred stock and shareholders' deficit	$14,288		$17,007
[1]	All common share amounts and computations using such amounts have been retroactively adjusted to reflect the September 4, 2013 1-for-50 reverse stock split.

CONSOLIDATED_BALANCE_SHEETS_Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Dec. 31, 2013	Mar. 31, 2013
CONSOLIDATED BALANCE SHEETS	'	'
Equipment, accumulated depreciation (in dollars)	$283,000	$132,000
Redeemable preferred stock, par value (in dollars per share)	$0.00	$0.00
Redeemable preferred stock, shares authorized	100,000,000	100,000,000
Redeemable preferred stock, shares outstanding	15,000,000	'
Redeemable preferred stock, liquidation preference	$15,000,000	'
Common stock, par value (in dollars per share)	$0.00	$0.00
Common stock, shares authorized	300,000,000	300,000,000
Common stock, shares issued	4,191,658	1,451,914
Common stock, shares outstanding	4,191,658	1,451,914

CONSOLIDATED_STATEMENT_OF_OPER

CONSOLIDATED STATEMENT OF OPERATIONS (USD $)	3 Months Ended				9 Months Ended				41 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2013
Expenses:	'		'		'		'		'
Exploration	$777		$5,646		$4,848		$17,016		$30,072
General and administrative	4,950		15,723		9,306		29,611		70,490
Off-take fee	'		7,751		-438		7,751		7,313
(Gain) loss on change in warrant liability	-5,918		324		-867		5,943		5,099
Total expenses	-191		29,444		12,849		60,321		112,974
Gain (loss) from operations	191		-29,444		-12,849		-60,321		-112,974
Other income (expense):	'		'		'		'		'
Derivative gains (losses)	650		-1,900		2,162		-1,900		-54,504
Loss on extinguishments, net	-11,423		'		-49		'		-2,049
Asset impairment	-643		'		-1,224		'		-1,224
Interest, net	-9,360		-2,741		-25,970		-4,612		-35,270
Total other expenses	-20,776		-4,641		-25,081		-6,512		-93,047
Net loss	-20,585		-34,085		-37,930		-66,833		-206,021
Net loss attributable to non-controlling interest	'		'		'		4,069		7,837
Net loss attributable to Prospect Global Resources Inc.	($20,585)		($34,085)		($37,930)		($62,764)		($198,184)
Earnings per share Basic and diluted	'		'		'		'		'
Loss per share (in dollars per share)	($5.01)	[1]	($26.50)	[1]	($13.62)	[1]	($59.32)	[1]	($142.61)	[1]
Weighted average number of shares outstanding (in shares)	4,203		1,286		2,820		1,058		1,393
[1]	All common share amounts and computations using such amounts have been retroactively adjusted to reflect the September 4, 2013 1-for-50 reverse stock split.

CONSOLIDATED_STATEMENT_OF_OPER1

CONSOLIDATED STATEMENT OF OPERATIONS (Parenthetical)	0 Months Ended
	Sep. 04, 2013
CONSOLIDATED STATEMENT OF OPERATIONS	'
Reverse stock split	0.02

CONSOLIDATED_STATEMENT_OF_CASH

CONSOLIDATED STATEMENT OF CASH FLOWS (USD $)	9 Months Ended		41 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013
CASH FLOWS USED IN OPERATING ACTIVITIES:	'	'	'
Net loss	($37,930)	($66,833)	($206,021)
Adjustments to reconcile net loss to net cash used in operating activities:	'	'	'
Services paid for with stock	1,569	4,547	8,600
Apollo fees paid with promissory note	'	'	6,750
Derivative (gains) losses	-2,162	1,900	54,504
(Gain) loss on debt extinguishment	-497	'	1,503
Impairment of assets	724	'	724
Stock-based compensation	1,840	9,285	21,831
Warrant expense	-867	5,943	5,099
Interest expense	10,699	4,620	20,009
Amortization of debt discount	14,586	'	14,586
Amortization of deferred financing costs	673	'	673
Karlsson Group tax compensation	1,537	6,226	7,763
Depreciation	161	72	275
SKLH land option extinguishment	500	0	500
Changes in operating assets and liabilities:	'	'	'
Other current assets	7	170	-769
Accounts payable and accrued liabilities	-2,905	5,979	4,463
Change in derivative warrant liabilities	-806	'	-806
Change in other long-term assets	38	'	38
Net cash used in operating activities	-12,833	-28,091	-60,278
CASH FLOWS USED IN INVESTING ACTIVITIES:	'	'	'
Mineral properties	'	-98	-2,690
Land acquisitions	-19	'	-399
Increase in restricted cash	-1	'	-1
Equipment acquisitions	-23	-643	-748
Net cash used in investing activities	-43	-741	-3,838
CASH FLOWS FROM FINANCING ACTIVITIES:	'	'	'
Proceeds from convertible notes	5,000	'	14,049
Merkin note amendment	'	'	-2,000
Karlsson note principal payments	-96	'	-9,814
Apollo notes principal payments	-95	'	-95
Karlsson tax compensation payments	-14	-9,718	-14
Net Proceeds from common stock issued	7,108	61,884	87,041
Cash paid for non-controlling interest acquisition	'	-25,000	-25,000
Net cash provided by financing activities	11,903	27,166	64,167
Net increase (decrease) in cash and cash equivalents	-973	-1,666	51
Cash and cash equivalents- beginning of period	1,024	11,300	'
Cash and cash equivalents - end of period	51	9,634	51
Cash paid for interest	12	'	'
Supplemental disclosure of non-cash transactions:	'	'	'
Convertible notes and accrued interest converted into shares of common stock	'	'	-9,493
Common stock attributable to reverse merger	'	'	2
Fair value of land contributed by non-controlling interest	'	'	-11,000
Note receivable in exchange for shares of common stock	'	'	-1,125
Grandhaven Obligation, net of $25,000 receivable	'	'	4,036
Non-controlling interest acquisition	'	'	500
SK Land Holdings Option	-500	500	'
Preferred stock into common stock and warrants	2,276	'	'
Embedded derivative liability (non-current)	650	'	650
Buffalo revenue interest exchange	8,712	'	8,712
Temporary Equity (Preferred Stock)	'	'	'
Supplemental disclosure of non-cash transactions:	'	'	'
Convertible note into preferred stock	5,439	'	5,439
Preferred stock into common stock and warrants	($5,439)	'	($5,439)

CONSOLIDATED_STATEMENT_OF_CASH1

CONSOLIDATED STATEMENT OF CASH FLOWS (Parenthetical) (USD $)	9 Months Ended		41 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013
CONSOLIDATED STATEMENT OF CASH FLOWS	'	'	'
Grandhaven Obligation, receivable	$25,000	$25,000	$25,000

CONSOLIDATED_STATEMENT_OF_SHAR

CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (DEFICIT) (USD $)		Total	Preferred Stock	Common Stock		Additional Paid-in Capital		Losses Accumulated in the Exploration Stage	Non-Controlling Interest	Temporary Equity (Preferred Stock)
In Thousands, except Share data, unless otherwise specified		USD ($)		USD ($)		USD ($)		USD ($)	USD ($)	USD ($)
Balance at Aug. 04, 2010		'	'	'		'		'	'	'
Increase (Decrease) in Shareholders' Equity		'	'	'		'		'	'	'
Debt to preferred stock conversion		'	'	'		'		'	'	$5,439
Exchange of preferred stock for common stock and warrants		'	'	'		'		'	'	-5,439
Net loss		-206,021	'	'		'		'	'	'
Balance (in shares) at Dec. 31, 2013		15,000,000	'	'		'		'	'	'
Balance at Dec. 31, 2013		-159,155	'	'		'		'	'	4,996
Balance at Aug. 05, 2010		'	'	'		'		'	'	'
Increase (Decrease) in Shareholders' Equity		'	'	'		'		'	'	'
Stock issued in private placements		54	'	'		54	[1]	'	'	'
Stock issued in private placements (in shares)	[1]	'	'	328,273		'		'	'	'
Contributions		11,000	'	'		'		'	11,000	'
Stock issued for services		316	'	'		316	[1]	'	'	'
Stock issued for services (in shares)	[1]	'	'	42,833		'		'	'	'
Stock-based compensation		1	'	'		1	[1]	'	'	'
Stock-based compensation (in shares)	[1]	'	'	17,000		'		'	'	'
Stock acquired through merger (in shares)	[1]	'	'	34,700		'		'	'	'
Convertible notes and accrued interest converted into common stock		1,076	'	'		1,076	[1]	'	'	'
Convertible notes and accrued interest converted into common stock (in shares)	[1]	'	'	7,171		'		'	'	'
Net loss		-17,209	'	'		'		-16,834	-375	'
Balance (in shares) at Mar. 31, 2011	[1]	'	'	429,977		'		'	'	'
Balance at Mar. 31, 2011		-4,762	'	'		1,447	[1]	-16,834	10,625	'
Increase (Decrease) in Shareholders' Equity		'	'	'		'		'	'	'
Stock issued in private placements		13,972	'	'		13,972	[1]	'	'	'
Stock issued in private placements (in shares)	[1]	'	'	85,552		'		'	'	'
Stock issued for services		2,061	'	'		2,061	[1]	'	'	'
Stock issued for services (in shares)	[1]	'	'	10,000		'		'	'	'
Stock-based compensation		9,717	'	'		9,717	[1]	'	'	'
Stock-based compensation (in shares)	[1]	'	'	14,000		'		'	'	'
Convertible notes and accrued interest converted into common stock		64,800	'	'		64,800	[1]	'	'	'
Convertible notes and accrued interest converted into common stock (in shares)	[1]	'	'	250,254		'		'	'	'
Net loss		-66,957	'	'		'		-63,566	-3,391	'
Balance (in shares) at Mar. 31, 2012	[1]	'	'	789,783		'		'	'	'
Balance at Mar. 31, 2012		18,831	'	'		91,997	[1]	-80,400	7,234	'
Increase (Decrease) in Shareholders' Equity		'	'	'		'		'	'	'
Stock issued in private placements		1,000	'	'		1,000	[1]	'	'	'
Stock issued in private placements (in shares)	[1]	'	'	4,706		'		'	'	'
Stock issued for services		4,652	'	'		4,652	[1]	'	'	'
Stock issued for services (in shares)	[1]	'	'	40,425		'		'	'	'
Non-controlling interest acquisition		-182,219	'	'		-179,056	[1]	'	-3,163	'
The Karlsson Group warrant issuance		34,620	'	'		34,620	[1]	'	'	'
Stock issued in public offerings		66,290	'	1	[1]	66,289	[1]	'	'	'
Stock issued in public offerings (in shares)	[1]	'	'	608,000		'		'	'	'
Cost of public offerings		-5,406	'	'		-5,406	[1]	'	'	'
Stock-based compensation		16,239	'	'		16,239	[1]	'	'	'
Stock-based compensation (in shares)	[1]	'	'	9,000		'		'	'	'
Net loss		-83,925	'	'		'		-79,854	-4,071	'
Balance (in shares) at Mar. 31, 2013	[1]	'	'	1,451,914		'		'	'	'
Balance (in shares) at Mar. 31, 2013		'	'	'		'		'	'	'
Balance at Mar. 31, 2013		-129,918	'	1	[1]	30,335	[1]	-160,254	'	'
Increase (Decrease) in Shareholders' Equity		'	'	'		'		'	'	'
Stock issued for services		1,569	'	'		1,569	[1]	'	'	'
Stock issued for services (in shares)	[1]	'	'	247,742		'		'	'	'
The Karlsson Group warrant issuance		190	'	'		190	[1]	'	'	'
Very Hungry warrant issuance		1,715	'	'		1,715	[1]	'	'	'
Stock issued in public offerings		805	'	2	[1]	803	[1]	'	'	'
Stock issued in public offerings (in shares)	[1]	'	'	1,575,334		'		'	'	'
Cost of public offerings		-790	'	'		-790	[1]	'	'	'
Debt to preferred stock conversion		'	'	'		'		'	'	5,439
Debt to preferred stock conversion (in shares)		'	5,500,000	'		'		'	'	'
Exchange of preferred stock for common stock and warrants		2,276	'	1	[1]	2,275	[1]	'	'	-5,439
Exchange of preferred stock for common stock and warrants (in shares)		'	-5,500,000	916,668	[1]	'		'	'	'
Redeemable Preferred Stock (Note 9)		'	'	'		'		'	'	4,996
Redeemable Preferred Stock (Note 9) (in shares)		'	15,000,000	'		'		'	'	'
Warrant reclass to liability		1,088	'	'		1,088	[1]	'	'	'
Stock-based compensation		1,840	'	'		1,840	[1]	'	'	'
Net loss		-37,930	'	'		'		-37,930	'	'
Balance (in shares) at Dec. 31, 2013	[1]	'	'	4,191,658		'		'	'	'
Balance (in shares) at Dec. 31, 2013		15,000,000	15,000,000	'		'		'	'	'
Balance at Dec. 31, 2013		($159,155)	'	$4	[1]	$39,025	[1]	($198,184)	'	$4,996
[1]	All common share amounts and computations using such amounts have been retroactively adjusted to reflect the September 4, 2013 1-for-50 reverse stock split.

CONSOLIDATED_STATEMENT_OF_SHAR1

CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (DEFICIT) (Parenthetical)	0 Months Ended
	Sep. 04, 2013
CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (DEFICIT)	'
Reverse stock split	0.02

Organization_and_Business_Oper

Organization and Business Operations	9 Months Ended
	Dec. 31, 2013
Organization and Business Operations	'
Organization and Business Operations	'
	Note 1 — Organization and Business Operations
	Prospect Global is an exploration stage company engaged in the exploration and development of a potash deposit located in the Holbrook Basin of eastern Arizona, which we refer to as the Holbrook Project. We hold our interest in and control the Holbrook Project through our wholly owned subsidiary AWP.
	Between January and November 2011, we invested $11.0 million dollars in AWP and the Karlsson Group contributed to AWP its ownership of mineral rights on eight private sections and potash exploration permits on 42 Arizona state sections, comprising a total of approximately 31,000 gross acres in the Holbrook Basin, for a 50% ownership interest in AWP. In July 2011, AWP entered into a Potash Sharing Agreement covering 101 private mineral estate sections and related mineral leases on approximately 62,000 acres adjacent to or in close proximity to AWP’s existing mineral rights.  On August 1, 2012 we purchased the Karlsson Group’s 50% interest in AWP and became the sole owner and operator of AWP.   We subsequently relinquished our rights to eight of the ASLD exploration permits. As of December 31, 2013, we held exploration permits and leases on 143 mineral estate sections spanning approximately 88,175 acres.

Liquidity

Liquidity	9 Months Ended
	Dec. 31, 2013
Liquidity, Capital Requirements and Debt Restructurings	'
Liquidity, Capital Requirements and Debt Restructurings	'
	Note 2 — Liquidity
	As of February 14, 2014, we had cash of approximately $0.8 million available for general corporate purposes.  Of this amount, we expect to pay approximately $0.4 million on certain obligations.  This would leave us with approximately $0.4 million for general corporate purposes which we would expect to sustain operations through March.  On or before March 10, 2014 we have a $25 million payment due under our Karlsson debt which if we fail to make payment we will be in default.  We are trying to raise additional funds and may decide to file bankruptcy if we cannot do so.

Summary_of_Significant_Account

Summary of Significant Accounting Principles	9 Months Ended
	Dec. 31, 2013
Summary of Significant Accounting Principles	'
Summary of Significant Accounting Principles	'
	Note 3—Summary of Significant Accounting Principles
	This summary of significant accounting policies of the Company is intended to assist readers in understanding the Company’s financial statements. The financial statements and notes are representations of the Company’s management, which is responsible for their integrity and objectivity.
	Basis of Presentation
	The accompanying unaudited Interim Condensed Consolidated Financial Statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”), the instructions to Form 10-Q and Article 10 of Regulation S-X. In management’s opinion, all of the normal and recurring adjustments necessary to fairly present the interim financial information set forth herein have been included. The results of operations for interim periods are not necessarily indicative of the operating results of a full year or of future years. These interim financial statements follow the same accounting policies and methods of their application as the most recent annual financial statements unless specifically discussed below. These interim financial statements are unaudited and should be read in conjunction with the Company’s audited financial statements and related footnotes for the year ended March 31, 2013 included in the Company’s Annual Report on Form 10-K/A filed with the SEC on Febarury 12, 2014.
	We have incurred net losses totaling $198.2 million since inception and at December 31, 2013 we had a working capital deficit of $167.4 million. These consolidated interim financial statements have been prepared on a going concern basis, which contemplates the realization of assets and settlement of liabilities in the normal course of business for the foreseeable future and do not give effect to any adjustments which would be necessary should the Company be unable to continue as a going concern.
	Use of Estimates
	The preparation of the Company’s consolidated financial statements requires management to make judgments, estimates and assumptions that affect the reported amounts of assets and liabilities and related disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of expenses incurred during the reporting period. The Company bases its estimates on various assumptions that are believed to be reasonable under the circumstances. Accordingly, actual results may differ significantly from these estimates under different assumptions or conditions.
	Mineral Properties
	The Company is primarily engaged in the acquisition, exploration and exploitation of mineral properties with the objective of extracting minerals from these properties. Mineral property exploration costs are expensed as incurred. Costs for acquired mineral property are capitalized and then impaired if the criteria for capitalization are not met. Capitalization of mine development costs that meet the definition of an asset will commence once we have proven and probable reserves in accordance with SEC Industry Guide 7.
	Mineral properties, land and water rights are periodically assessed for impairment of value, and any subsequent losses are charged to operations at the time of impairment.  If a property is abandoned or sold, a gain or loss is recognized and included in the consolidated statement of operations.
	In the event that a mineral property is acquired through the issuance of the Company’s shares, the mineral property is recorded at the fair value of the respective property or the fair value of common shares and other instruments issued, whichever is more readily determinable. When mineral properties are acquired under option agreements with future acquisition payments to be made at the sole discretion of the Company, those future payments, whether in cash, shares, or other instruments are recorded only when the Company has made or is obliged to make the payment or issue the shares or instruments.
	Allocation of Costs
	From time to time our capital raise activities will result in the issuance of more than one security, such as shares of our common stock and warrants to purchase our common stock.  In these cases, we will allocate the costs of that capital raise between the various securities issued based on the relative fair value of each security issued.
	Recent Accounting Pronouncements
	The Company has considered recently issued accounting pronouncements and does not believe that such pronouncements are of significance, or potential significance, to the Company.

Other_Current_Assets

Other Current Assets	9 Months Ended
	Dec. 31, 2013
Other Current Assets	'
Other Current Assets	'
	Note 4 — Other Current Assets
	As of December 31, 2013 and March 31, 2013, other current assets were comprised of:
		December 31, 2013		March 31, 2013
		(thousands)		(thousands)
		(unaudited)
	Prepaid insurance & deposits	$	186	276
	Land purchase option	—		500
	Deferred financing fees	70		—
	Other	41		395
	Total other current assets	$	297	$	1,171

Mineral_Properties

Mineral Properties	9 Months Ended
	Dec. 31, 2013
Mineral Properties	'
Mineral Properties	'
	Note 5—Mineral Properties
	At both December 31, 2013 and March 31, 2013, the balances of mineral properties were comprised primarily of the value of the mineral rights and exploration permits contributed by the Karlsson Group in exchange for their initial 50% ownership interest in AWP. During the three months ended December 31, 2013, we chose not to renew the leases on four of these permits and reduced the value of the mineral properties contributed by the Karlsson Group by $0.6 million, which is included in asset impairment in the consolidated statement of operations.
	The majority of the $2.6 million in payments to private landowners for mineral rights is comprised of the cash payments made under our July 2011 Potash Sharing Agreement covering 101 private mineral estate sections and the related mineral leases on approximately 62,000 acres.
		December 31, 2013		March 31, 2013
		(thousands)		(thousands)
		(unaudited)
	Karlsson Group contribution of mineral rights and exploration permits	$	10,357	$	11,000
	Payments to private landowners for mineral rights	2,641		2,641
	Leasehold options	49		49
	Total mineral properties	$	13,047	$	13,690

Other_Longterm_Assets

Other Long-term Assets	9 Months Ended
	Dec. 31, 2013
Other Long-term Assets	'
Other Long-term Assets	'
	Note 6 — Other Long-term Assets
	As of December 31, 2013 and March 31, 2013, our other long-term assets consisted of surety deposits posted under various leasing agreements, utility contracts and exploration permits, all of which are expected to be held for the next twelve months or more.

Accounts_Payable_and_Accrued_L

Accounts Payable and Accrued Liabilities	9 Months Ended
	Dec. 31, 2013
Accounts Payable and Accrued Liabilities	'
Accounts Payable and Accrued Liabilities	'
	Note 7 — Accounts Payable and Accrued Liabilities
	Accounts payable and accrued liabilities at December 31, 2013 and March 31, 2013 were comprised of:
		December 31, 2013		March 31, 2013
		(thousands)		(thousands)
		(unaudited)
	Drilling/permitting	$	174	$	382
	Engineering	1,617		1,796
	Private leaseholder obligations	—		1,500
	Legal	678		720
	Board of Directors’ fees	125		125
	Off-take arrange fee	50		1,588
	Compensation and other	2,049		1,245
	Total accounts payable and accrued liabilities	$	4,693	$	7,356

Debt_and_Tax_Compensation_on_N

Debt and Tax Compensation on Note Payable	9 Months Ended
	Dec. 31, 2013
Debt and Tax Compensation on Note Payable	'
Debt and Tax Compensation on Note Payable	'
	Note 8 — Debt and Tax Compensation on Note Payable
	On December 10, 2013, we entered into an Extension Agreement with the Karlsson Group under which we can retire all amounts owing under the Karlsson note for the discounted payoff amount of $25 million provided we pay this amount on or before March 10, 2014. If we are unable to pay the $25 million on or before March 10, 2014, the entire undiscounted amount of the Karlsson debt then owing (estimated to be approximately $151.7 million at March 10, 2014) would be immediately due and payable.  This would also cause all amounts then owing under our Apollo debt (estimated to be approximately $7.4 million at March 10, 2014) to be immediately due and payable on March 10, 2014.  Also see Note 19 — Subsequent Events under the heading of “Restructuring of Senior Unsecured Debt” for additional information on our agreement under which we can retire the Apollo debt on or before March 10, 2014 in exchange for shares of our common stock.
	In accordance with U.S. GAAP, the December 10, 2013 Extension Agreement with the Karlsson Group was deemed to be a debt extinguishment and therefore we wrote-off the net carrying value of the old (extinguished) note and recorded the new note at its estimated fair value of $134.1 million. The $11.4 million difference between the net carrying value of the extinguished note and the new note was recorded as a loss on extinguishment and is included in Other Expenses on the December 31, 2013 Consolidated Statement of Operations. We also recorded $13.3 million of note discount on the new note for the difference between the $134.1 million estimated fair value of the new note and the $147.4 million then owing under the new note (without taking into consideration the $25 million discounted payoff amount if paid on or before March 10, 2014).
	As of December 31, 2013, our indebtedness totaled $145.9 million or $156.8 million including the $10.9 million of accrued interest owed.
		December 31, 2013			March 31, 2013
		(thousands)			(thousands)
		(unaudited)
	Karlsson senior secured note	$	120,079		$	115,282
	Apollo unsecured notes	6,654			6,750
	Tax compensation on Karlsson senior secured note	19,152			6,226
	Total current debt and tax compensation	145,885			128,258
	Less: Unamortized debt discount*	(10,197		)	—
	Less: current portion of debt and tax compensation	(135,688		)	(128,258		)
	Total long-term debt and tax compensation	$	—		$	—
	* Includes $13,300 of gross discount on the Karlsson Note, net of amortized discount of $3,103 at December 31, 2013.
	Karlsson Group Senior Secured Note
	We issued the Karlsson Group a $125.0 million senior first priority secured promissory note on August 1, 2012 as partial consideration for the acquisition of their 50% interest in AWP.  We also agreed to compensate the Karlsson Group for increases in certain federal and state income taxes and other tax related matters.  All amounts owing to the Karlsson Group are secured by a lien on all the assets of AWP, a pledge of the capital stock of our subsidiary companies and a payment guarantee from Prospect Global.
	On December 10, 2013, we entered into an extension agreement with the Karlsson Group which restructured the senior first priority secured promissory note. Under the terms of the extension agreement, we have until March 10, 2014 to prepay all amounts owing under the Karlsson senior secured note for the aggregate discounted payoff amount of $25 million. Upon payment of the $25 million discounted payoff amount, the Karlsson Note will be deemed paid in full (including all principal, interest and tax compensation amounts) and the Karlsson Group will release its first priority lien over our assets. In the event we do not pay the discounted payoff amount on or before March 10, 2014, we will be in default under the Karlsson Note as in effect prior to the extension agreement without the ability to cure such default and the Karlsson Group would have the right to foreclose on all of our assets.  If we are unable to raise sufficient funds to pay off the Karlsson Group debt on or before March 10, 2014, we anticipate that we would voluntarily file for bankruptcy protection rather than permit the Karlsson Group to initiate foreclosure proceedings.
	The Karlsson note bears interest at 9% and is payable quarterly in-kind by an increase to the note’s outstanding principal balance.  To the extent we are unable to pay the discounted payoff amount by March 10, 2014, all undiscounted amounts then owing under the Karlsson note would become immediately due and payable on March 10, 2014 which in the aggregate will total approximately $151.7 million on March 10, 2014.
	Excluding the first $1.0 million of capital we raise between December 10, 2013 and March 10, 2014, we are required to prepay the Karlsson Note with 10% of the gross proceeds from any future capital raises until the Karlsson Note has been paid in full. The Karlsson Note is also mandatorily pre-payable within five business days of a sale of at least 50% of AWP or a merger of AWP with or into an unaffiliated entity.
	The principal balance, accrued interest and compensation for tax matters totaled approximately $149.6 million as of December 31, 2013, all of which is included in current liabilities.
	Debt covenant requirements
	Excluding the first $1.0 million of capital we raise between December 10, 2013 and March 10, 2014:
	(i).          we are required to deposit 50% of the net proceeds of the next of $18.8 million of capital we raise (for a total of $9.4 million) into escrow, which funds may be used solely to fund drilling and the Holbrook Project development.
	(ii).       we are required to pay 20% of all future capital raises to Karlsson and Apollo (10% to each) as payments on their respective promissory notes.
	These obligations will reduce the cash available from future capital raises that can be used to fund our on-going operations.
	Karlsson Note Tax Compensation
	We currently estimate the compensation for tax matters to be approximately $19.2 million under the Karlsson debt. This estimate could change based on future changes in tax rates (including increases in effective income tax rates caused by “minimum tax” provisions such as the “Buffett rule” or “flat tax” proposals) and/or future changes in certain interest rates published by the Internal Revenue Service.
	Pursuant to the December 10, 2013 Extension Agreement, all amounts owing under the Karlsson note, including the approximately $19.2 million for tax compensation matters, will become immediately due and payable on March 10, 2014 if we are not able to retire the Karlsson Group debt on or before this date.  As a result, the $19.2 million for tax compensation matters has been included in current liabilities as of December 31, 2013.
	Apollo Notes
	On March 7, 2013, we entered into a Termination and Release Agreement with certain affiliates of certain investment funds managed by Apollo Global Management, LLC (which we refer to collectively as the Apollo Parties) that terminated the agreements we entered into with the Apollo Parties in November 2012 (as amended in December 2012). In connection with the Termination and Release Agreement, we issued the Apollo Parties two promissory notes (“the Apollo Notes”) totaling approximately $6.8 million as partial consideration for the break-up and release. The Apollo Notes, which were subsequently amended on April 15, 2013 and January 10, 2014, are unsecured and bear interest at the rate of 11% per annum and mature on the earlier of i) July 1, 2015; ii) 12 months following completion of our Definitive Feasibility Study; or iii) the date the Karlsson Note is paid in full.
	Excluding the first $1.0 million of capital we raise between December 10, 2013 and March 10, 2014, we are required to prepay the Apollo Notes with 10% of the gross proceeds from any future capital raises until the notes have been paid in full.  As of December 31, 2013 we owed a total of $7.3 million, of which $0.6 million was for accrued interest.  This entire balance, principal and interest, is included in current liabilities at December 31, 2013 as a result of the March 10, 2014 due date for the Karlsson Note. See Note 18—Subsequent Events for additional information.

Redeemable_Preferred_Stock

Redeemable Preferred Stock	9 Months Ended
	Dec. 31, 2013
Redeemable Preferred Stock	'
Redeemable Preferred Stock	'
	Note 9 — Redeemable Preferred Stock
	At December 31, 2013, we had a single series of redeemable preferred stock with a liquidation value of $15.0 million outstanding. This preferred stock, which is held by Buffalo Management, LLC, a related party, is non-voting, non-convertible and carries an 8% annual cumulative dividend.
	Dividends on the preferred stock began accumulating on the issue date of August 14, 2013 and will continue to accumulate, whether or not declared. Undeclared, cumulative dividends totaled approximately $0.5 million at December 31, 2013. Dividends will be accrued when declared. To date, no dividends have been declared.  All unpaid dividends become payable on the date that is six months after a minimum of 50,000 tonnes of potash has first been shipped from our Holbrook Project. Thereafter, the dividends are payable quarterly in arrears on March 15, June 15, September 15 and December 15 of each year.
	We may redeem the preferred stock, in whole or in part, at any time after August 14, 2016. The holders of the redeemable preferred stock may redeem their shares, in whole or in part, at any time following the three year anniversary of the date on which a minimum of 50,000 tonnes of potash has first shipped from our Holbrook Project. In either case, redemption will be made by cash payment in a per share amount equal to the liquidation value per share plus all accrued and unpaid dividends through the date of redemption; provided, that the redemption payment may not exceed 10% of our market capitalization value at the time of redemption.  Due to the preferred stock being contingently redeemable until we begin production, we have classified the preferred stock as temporary equity on the balance sheet.
	The put option held by Buffalo is an embedded derivative and has been bifurcated and recorded at its estimated fair value of $0.7 million at December 31, 2013.  We estimated the fair value of this put option by using scenario analysis based on various assumptions including: probability of achieving production, discount rate, preferred stock redemption periods, mine life and future potash prices.

Related_Party_Transactions

Related Party Transactions	9 Months Ended
	Dec. 31, 2013
Related Party Transactions	'
Related Party Transactions	'
	Note 10—Related Party Transactions
	Quincy Prelude LLC and Buffalo Management LLC
	Quincy Prelude LLC owns 100% of the voting interests and 82.5% of the economic interests of Buffalo Management LLC (“Buffalo Management” or “Buffalo”) and has sole voting and dispositive power of the shares of our common stock owned by Buffalo. Buffalo owns 15,000,000 shares of our non-voting preferred stock with a liquidation preference of $15.0 million and 8% annual cumulative dividend. Chad Brownstein, one of our directors and executive vice chairman, is the sole member of Quincy Prelude LLC and has sole voting and dispositive power of the shares of our common stock beneficially owned by Quincy Prelude LLC. Barry Munitz, our chairman, owns a 17.5% non-voting economic interest in Buffalo Management. Together Quincy Prelude and Buffalo Management beneficially own more than 5% of our common stock.
	During the nine months ended December 31, 2013 and 2012 and for the period from inception through December 31, 2013, Prospect paid Buffalo approximately nil, $1.1 million and $1.4 million, respectively.  No amounts were owing to Buffalo as of December 31, 2013 or 2012.
	Under the Karlsson Extension Agreements, we were required to increase Karlsson’s royalty interest from 1% to 2% without increasing the aggregate amount of royalty interests payable to third parties. In order to achieve this result, we negotiated with Buffalo to reduce our revenue interest to Buffalo from 2% to 1%. On August 14, 2013, we compensated Buffalo for this 1% revenue interest by issuing Buffalo 15.0 million shares of our newly created redeemable preferred stock and warrants to purchase 1,005,283 shares of our common stock at $7.20 per share, expiring on August 13, 2018.  These warrants have full-ratchet anti-dilution protection to $3.50 per share. Due to the full ratchet protection, Buffalo was issued an additional 781,887 warrants in connection with our September 2013 capital raise which was completed at $4.05 per share. The September capital raise also resulted in the re-pricing of the 1,005,283 warrants from $7.20 to $4.05.  Due to the additional warrants being issued as a result of the full ratchet anti-dilution protection, additional expense was incurred for the new warrants. When this agreement was finalized on August 14, 2013, we recorded a gain of $0.5 million for the change in fair value of the warrants as originally estimated at quarter-ended June 30, 2013.
	For warrants with full ratchet anti-dilution protection, any issuances of common stock (or securities exercisable into common stock) at a price below the exercise price of the warrants results in a reduction in the exercise price of the warrants to the new issuance or strike price and a corresponding increase in the number of warrants issued. For example, if an investor held 300 warrants with an exercise price of $4.00 and we issued new shares of common stock at $3.00 per share, the strike price on the warrants would be reduced to $3.00 and the investor would receive an additional 100 warrants with a $3.00 exercise price.
	As of December 31, 2013, Quincy Prelude and Buffalo’s holdings included the following:
	Stock and Warrants	Quantity	Strike Price ($)		Expiration Date
	Warrants	36,271	187.5		2016
	Warrants	35,410	130		2017
	Warrants*	1,787,171	4.05		2018
	Common Stock	63,763	N/A		N/A
	Preferred Stock 8% Cumulative	15,000,000	N/A		N/A
	Options**	4,000	130		2022
	Options**	2,000	212.5		2021
	*In conjunction with the February 12, 2014 capital raise the strike price on the 1,787,171 Buffalo warrants was reduced from $4.05 to $3.50 and we issued Buffalo Management 280,841 additional warrants with a strike price of $3.50 pursuant to the full ratchet anti-dilution provision.
	**Options held by Chad Brownstein, our Executive Vice Chairman
	Gregory M. Dangler, our interim chief financial officer, performs services from time to time for Buffalo Management, which is permitted by his employment agreement, and is compensated by Buffalo Management for this work.
	Brownstein Hyatt Farber Schreck, LLP
	Chad Brownstein, one of our directors and executive vice chairman, is the son of a founding partner of Brownstein Hyatt Farber Schreck, LLP (“Brownstein Hyatt”), which serves as Prospect Global’s principal outside legal counsel and also provides government relations services to us. As of December 31, 2013, Mr. Brownstein’s father controlled 104,074 shares of Prospect Global’s common stock, all of which were received in lieu of payment for services then owing.  Brownstein Hyatt also holds fully vested options to purchase 2,400 shares of our common stock at $130.00 per share, expiring in 2022.
	During the nine months ended December 31, 2013 and 2012 and for the period from inception through December 31, 2013, Prospect made cash payments to Brownstein Hyatt totaling approximately $1.5 million, $3.2 million and $5.8 million respectively for legal and lobbying/permitting fees. Approximately $0.3 million and nil payable to Brownstein Hyatt are included in accrued liabilities and accounts payable as of December 31, 2013 and 2012, respectively. Chad Brownstein does not share in any of these fees.
	Hexagon Investments, LLC and affiliates
	One of our former board members, Scott Reiman, who served on our board from August 2011 to March 2012, is the founder of Hexagon Investments, LLC (“Hexagon”). Conway Schatz, an employee of Hexagon, became a director in April 2012 and resigned from our board on September 29, 2013. Grandhaven Energy, Very Hungry LLC and the Scott Reiman 1991 Trust are all affiliates of Hexagon.  At December 31, 2013, Hexagon and its affiliates’ holdings consisted of the following:
	Entity	Quantity	Exercise Price			Expiration Date
	Common Stock Held
	Very Hungry LLC	891,112	N/A			N/A
	Scott Reiman Trust	199,086	N/A			N/A
	Total Common Stock	1,090,198
	Warrants
	Very Hungry LLC (1)	739,337	$	6		2014
	Very Hungry LLC	96,833	$	15		2017
	Very Hungry LLC (2)	1,095,314	$	4.05		2018
	Scott Reiman Trust (1)	177,331	$	6		2014
	Scott Reiman Trust	37,874	$	15		2017
	Scott Reiman Trust (2)	262,713	$	4.05		2018
	Total Warrants	2,409,402
	(1)   Series B warrants entitling the holder to purchase for $6.00 per unit one share of our common stock and one Series A warrant to purchase an additional share of our common stock for $6.00 per share.  If exercised, each Series A warrant would have full ratchet anti-dilution protection. All of these Series B warrants expired unexercised on January 9, 2014.
	(2)   Warrants have full ratchet anti-dilution protection.
	Grandhaven Energy Royalty Interest
	Grandhaven holds a 1% overriding royalty interest in the gross proceeds received by our subsidiary AWP from the extraction of potash from lands and state exploration permits held by AWP on November 22, 2011. At the time of acquiring this interest, we recognized a liability of $4.1 million for the fair value of this royalty obligation (the “Grandhaven Obligation”). Grandhaven also holds an option (the “Grandhaven Option”), that just became effective on December 31, 2013 and is now exercisable at any time, to receive shares of our common stock valued at $212.50 per share in exchange for the fair market value of any royalty interest surrendered.
	For accounting purposes, the Grandhaven Option is deemed to be a derivative financial instrument requiring bifurcation and fair value measurement beginning with the option’s effective date of December 31, 2013. The value of the Grandhaven Option at December 31, 2013 was determined to be nil given the difference between the Company’s stock price on that date and the $212.50 option conversion price.
	In addition, if;
	(i)                         the Arizona State Land Department declines to issue any lease to us with respect to any state exploration permit, or
	(ii)                      the Arizona State Land Department terminates any state exploration permit, or
	(iii)                   the Arizona State Land Department refuses to consent to the assignment of any royalty interests in any Arizona state lease, or requires any reduction of or imposes any condition on such royalty interests as a condition of approving an assignment of such royalty interests or approving any royalty reduction or other action with respect to a state lease,
	then Grandhaven has the option to receive substitute royalty interests from us in the same number of acres in portions of our private mineral leases, in a percentage sufficient to compensate Grandhaven for the reduced royalty interests in the affected state leases.
	If we have not been issued any Arizona state leases as of the date that we convey the assignment of the royalty interest in our private mineral leases, Grandhaven may elect to exchange their royalty in our Arizona state leases for a 1.388% royalty interest in all of our private mineral leases.
	On February 7, 2014 we received notice from Grandhaven regarding the closing of the conveyance of their royalty interests in the fee and state mineral rights owned by AWP.  As of February 14 the assignment of their royalty interest had not been completed.

Equity_Based_Compensation

Equity Based Compensation	9 Months Ended
	Dec. 31, 2013
Equity Based Compensation	'
Equity Based Compensation	'
	Note 11—Equity Based Compensation
	Stock Options
	As of December 31, 2013, we had the following options outstanding:
	Exercise Price ($)	Outstanding Options		Vested Options		Expiration
	2.25	75,000		75,000		2023
	2.36	610,000		610,000		2023
	130	95,000		88,334		2022
	144	6,000		6,000		2022
	212.5	60,300		60,300		2021
		846,300		839,634
	We are authorized to issue stock options up to the greater of 1,934,000 or 10% of the Company’s outstanding shares of capital stock pursuant to our approved equity incentive plans. In early November 2013, we issued 685,000 options at exercise prices of $2.25 and $2.36.
	Compensation expense for employees is recognized based on the estimated fair value of the awards on their grant date.  The fair value of options issued to non-employees is measured on the earlier of the date the performance is complete or the date the non-employee is committed to perform. In the event the non-employee measurement date occurs after an interim reporting date, the options are measured at their then-current fair value at each interim reporting date.
	Fair value for employee and non-employee options is estimated using the Black-Scholes option pricing model. Compensation expense is recognized on a straight-line basis over each grant’s respective vesting period for employees and service period for non-employees. Key inputs and assumptions used in estimating the fair value include our stock price, the grant price, expected term, volatility and the risk-free rate. Other assumptions used in estimating the fair value of awards granted through December 31, 2013 included the following:
	Expected Term	0.25 to 9.25 years
	Volatility*	113.4% to 165.62%*
	Risk-Free Rate	0.04% to 1.73%
	Dividend Yield	—
	*                 The Company’s estimates of expected volatility are based on the historic volatility of the Company’s common stock as well as the historic volatility of the Company’s peers due to the limited availability of historical trading information on the Company itself.
	A summary of stock option activity under the Plans as of December 31, 2013 and changes during the nine months then ended is presented below.
	Stock Options	Shares		Weighted-		Aggregate	Weighted-
				Average		Intrinsic	Average
				Exercise		Value ($000)	Remaining
				Price			Term (Years)
	Outstanding at March 31, 2013	186,160		160.72		—	9.02
	Granted	697,000		4.22		—	0
	Exercised	—		—		—	—
	Forfeited or expired	(36,860	)	141.67		—	—
	Outstanding at December 31, 2013	846,300		32.66		—	9.59
	Vested at December 31, 2013	839,634		31.88		—	9.59
	The weighted average grant date fair value of the stock options granted for the nine months ended December 31, 2013 and 2012 was $2.40 and $95.27, respectively.
	A summary of the status of the non-vested stock options as of December 31, 2013, and changes during the nine months ended December 31, 2013 is presented below.
	Non-vested Stock Options	Shares		Weighted
				Average
				Grant Date
				Fair Value
	Non-vested at March 31, 2013	53,883		$	99.71
	Granted	697,000		2.4
	Vested	(730,217	)	6.5
	Forfeited	(14,000	)	130.59
	Non-vested at December 31, 2013	6,666		$	70.71
	As of December 31, 2013, there was $0.2 million of total unrecognized compensation expense related to non-vested share based compensation arrangements granted under the Plans. That cost is expected to be recognized over a weighted average period of less than one year. The total expense for the fair value of vested grants during the nine months ended December 31, 2013 and 2012 was $1.8 million and $9.7 million, respectively.

Warrants

Warrants	9 Months Ended
	Dec. 31, 2013
Warrants	'
Warrants	'
	Note 12—Warrants
	As of December 31, 2013, we had the following warrants outstanding:
	·                  3,936,677 Series A Warrants having an exercise price of $4.05 per share and expiration dates in 2018. All Series A Warrants contain full ratchet anti-dilution protection provisions.
	·                  2,255,063 other warrants comprised of the following:
	Outstanding Warrants	Exercise Price ($)	Expiration	Notes
	1,000	2.25 – 4.04	2018
	1,787,171	4.05	2018	Contain full ratchet anti-dilution protection to $3.50 per share
	307,424	6.00 – 17.00	2017, 2019	See Note 1 below
	159,468	62.50 – 251.00	2014 - 2018
	2,255,063
	On February 12, 2014 we reduced the exercise price on 747,298 of our Series A Warrants issued in our June 2013 public offering from $4.05 to $1.50 and all 747,298 of these warrants were exercised.  In conjunction with the exercise we issued the investors 747,298 new Series A Warrants with an exercise price of $1.50, exercisable for five years only upon stockholder approval of the exercise.  Pursuant to the full ratchet anti-dilution terms in our Series A Warrants, the exercise price of our remaining outstanding Series A Warrants were adjusted to $1.50 and we issued an additional 5,362,190 Series A Warrants to holders.
	In conjunction with the February 12, 2014 capital raise the strike price on the 1,787,171 Buffalo warrants was reduced from $4.05 to $3.50 and we issued Buffalo Management 280,841 additional warrants with a strike price of $3.50 pursuant to the full ratchet anti-dilution provision.
	Note 1: we have agreed to adjust the exercise price on the 172,117 of these warrants currently held by the Karlsson Group to the lowest price per share of our common stock sold between November 14, 2013 and March 10, 2014, but in no event higher than the current exercise price of $12.50 per share on the 112,117 warrants issued on May 30, 2012 and $6.00 per share on the 60,000 warrant issued on June 26, 2013. At December 31, 2013, we estimated the fair value of these 172,117 warrants using the binomial-lattice-based valuation model and a range of potential adjusted exercises prices.  We then weighted the probability of each outcome to arrive at our estimate of fair value at December 31, 2013.
	·                  916,668 Series B Warrants, all of which expired on January 9, 2014 unexercised. These Series B Warrants had an exercise price of $6.00 per share and were exercisable for one share of our common stock and one Series A Warrant. Each Series A Warrant issued in the exercise of a Series B Warrant would have had a five year term, an initial exercise price of $6.00 and full ratchet anti-dilution protection.
	·                  Upon payment of the discounted payoff amount of $25 million on or before March 10, 2014, we have agreed to grant the Karlsson Group a new, five year warrant for 750,000 shares having an exercise price equal to the lowest price per share of our common stock sold between November 14, 2013 and March 10, 2014. At December 31, 2013, we estimated the fair value of this warrant using the binomial-lattice-based valuation model and a range of potential adjusted exercises prices.  We then weighted the probability of each outcome to arrive at our estimate of fair value at December 31, 2013.
	For warrants with full ratchet anti-dilution protection, any issuances of common stock (or securities exercisable into common stock) at a price below the exercise price of the warrants results in a reduction in the exercise price of the warrants to the new issuance or strike price and a corresponding increase in the number of warrants issued. For example, if an investor held 300 warrants with an exercise price of $4.00 and we issued new shares of common stock at $3.00 per share, the strike price on the warrants would be reduced to $3.00 and the investor would receive an additional 100 warrants with a $3.00 exercise price.
	For the three and nine month periods ended December 31, 2013, we recognized gains on the change in warrant liability of $5.9 million and $0.9 million.
	Service Warrants
	The Company has issued approximately 0.1 million warrants to purchase shares of common stock in exchange for services, with exercise prices ranging from $2.25 to $251.00. The weighted average exercise price for these warrants is $149.71.  For these awards, fair value is estimated using the binomial-lattice-based valuation model.  Expense is recognized on a straight-line basis over each grant’s respective service period. Key inputs and assumptions used in estimating the fair value include our stock price, the grant price, expected term, volatility and the risk-free rate. Assumptions used in estimating the fair value of service warrants granted through December 31, 2013 included the following:
	Remaining Term	0.08 to 4.84 years
	Volatility*	79.32% to 157.03%
	Risk-Free Rate	0.13% to 1.66%
	Dividend Yield	—
	*The Company’s estimates of expected volatility are based on the historic volatility of the Company’s common stock as well as the historic volatility of the Company’s peers due to the limited availability of historical trading information on the Company itself.
	Investor Warrants
	As part of its fundraising efforts, the Company has issued warrants from time to time to various investors to purchase shares of its common stock. As of December 31, 2013, a total of 7.0 million investor warrants had been issued and remained outstanding. The exercise price and remaining exercise period of these warrants ranged from $4.05 to $150.00. The weighted average exercise price of the investor warrants is $5.95. With the completion of our capital raise on June 26, 2013 and the issuance of the warrants therewith, we no longer met the criteria for equity accounting for our warrants and therefore began accounting for all warrants as liabilities.  This accounting change was triggered by the full ratchet anti-dilution provisions contained in these warrants.
	Assumptions used in estimating the fair value of investor warrants granted through December 31, 2013 included the following:
	Remaining Term	0.02 to 5.4 years
	Volatility*	71.07% to 164.38%
	Risk-Free Rate	0.13% to 1.89%
	Dividend Yield	—
	*The Company’s estimates of expected volatility are based on the historic volatility of the Company’s common stock as well as the historic volatility of the Company’s peers due to the limited availability of historical trading information on the Company itself.

Stockholders_Equity

Stockholders' Equity	9 Months Ended
	Dec. 31, 2013
Stockholders' Equity	'
Stockholders' Equity	'
	Note 13—Stockholders’ Equity
	On August 30, 2013, the shareholders of the Company approved a reverse stock split of the Company’s common stock (the “reverse stock split”) at a ratio of 1-for-50. The reverse stock split became effective September 4, 2013. The Company had 114,969,415 shares of common stock issued and outstanding immediately before the reverse stock split and 2,299,388 immediately following the reverse stock split. All share and per share amounts in these financial statements have been retroactively adjusted to reflect the reverse stock split.
	Common Stock
	The Company is authorized to issue 300,000,000 shares of common stock, with a par value of $0.001 per share, under the terms of the Company’s Amended and Restated Articles of Incorporation. As of December 31, 2013, there were 4,191,658 shares of our common stock issued and outstanding.  Subsequent to December 31, 2013, we issued an additional 748,798 shares for a total of 4,940,456 shares outstanding as of February 14, 2014.
	Preferred Stock
	The Company is authorized to issue 100,000,000 shares of preferred stock, with a par value of $0.001 per share, under the terms of the Company’s Amended and Restated Articles of Incorporation. As of December 31, 2013, we had 15,000,000 shares of redeemable preferred stock issued and outstanding having a liquidation value of $15.0 million.  This preferred stock is redeemable, non-convertible and non-voting and carries an 8% annual cumulative dividend. Redemptions of this preferred stock are limited to 10% of our market capitalization at the time of redemption.
	Also during the nine months ended December 31, 2013, we issued and redeemed another 5,500,000 shares of our preferred stock having a liquidation value of $5.5 million. This preferred stock was issued to Very Hungry LLC and the Scott Reiman 1991 Trust, affiliates of ours, in exchange for the redemption of the $5.5 million in convertible notes issued to the these parties in May 2013.  This non-redeemable, mandatorily convertible preferred stock was converted into an aggregate of 916,668 shares of common stock, 916,668 Series A warrants and 916,668 Series B warrants, identical to those issued in our June 2013 public offering, on August 30, 2013.  The conversion of this preferred stock represented a debt extinguishment and was accounted for as such.  This extinguishment resulted in the recognition of a $2.1 million loss from the write off of the remaining debt discount that was recorded on issuance of the convertible notes.  This transaction also resulted in a beneficial conversion of $0.7 million, all of which was recorded and amortized through additional paid-in capital during the period.
	The series of preferred stock outstanding at December 31, 2013 contains a fundamental change provision allowing the holder to receive the liquidation preference of the preferred stock and accrued dividends on the occurrence of a liquidity event such as a change in control, consolidation or merger.  We deemed the value of these options to be minimal.

Derivative_Financial_Instrumen

Derivative Financial Instruments	9 Months Ended
	Dec. 31, 2013
Derivative Financial Instruments	'
Derivative Financial Instruments	'
	Note 14—Derivative Financial Instruments
	As of December 31, 2013, we had recorded a derivative liability of $12.5 million representing the estimated fair value of our outstanding stock warrants on that date.  Prior to our June 26, 2013 capital raise, which included the issuance of warrants having full ratchet anti-dilution protection, our warrants had been accounted for under the equity method and as such at March 31, 2013 we had no similar liability.  With the anti-dilution protection afforded these newer warrants, we no longer met the criteria for equity accounting for our warrants and therefore began accounting for all warrants as liabilities.  We now re-measure this liability at the end of each quarter using a binomial lattice valuation model. See Note 12— Warrants.
	As of December 31, 2013, we also had an embedded derivative liability of $0.7 million relating to the embedded put option on the redeemable preferred stock held by Buffalo Management. This amount is included in other long-term liabilities on the balance sheet. The holder of this preferred stock may redeem their shares, in whole or in part, at any time following the three year anniversary of the date on which a minimum of 50,000 tonnes of potash has first shipped from our Holbrook Project.  We estimated the value of the derivative liability by using scenario analysis based on various assumptions including: probability of achieving production, discount rate, preferred stock redemption periods, mine life and potash prices.

Loss_per_Share

Loss per Share	9 Months Ended
	Dec. 31, 2013
Loss per Share	'
Loss per Share	'
	Note 15—Loss per Share
	The following sets forth the computation of basic and fully diluted weighted average shares outstanding and loss per share of common stock for the periods indicated (unaudited, in thousands except for per share amounts):
		Three Months			Three Months			Nine Months			Nine Months			Cumulative from
		Ended December			Ended December			Ended December			Ended December			August 5, 2010
		31, 2013			31, 2012			31, 2013			31, 2012			(Inception)
														through
														December
														31, 2013
		(unaudited)			(unaudited)			(unaudited)			(unaudited)			(unaudited)
	Numerator
	Net loss attributable to Prospect Global Resources Inc.	$	(20,585	)	$	(34,085	)	$	(37,930	)	$	(62,764	)	$	(198,184	)
	Undeclared Preferred Stock Dividends	(467		)	—			(467		)	—			(467		)
	Net loss applicable to common shares for basic and diluted earnings per share	(21,052		)	(34,085		)	(38,397		)	(62,764		)	(198,651		)
	Denominator
	Weighted average number of common shares outstanding — basic	4,203			1,286			2,820			1,058			1,393
	Dilution effect of restricted stock and warrants	—			—			—			—			—
	Weighted average number of common shares outstanding — fully diluted	4,203			1,286			2,820			1,058			1,393
	Basic and fully diluted loss per share of common stock	$	(5.01	)	$	(26.50	)	$	(13.62	)	$	(59.32	)	$	(142.61	)
	Our outstanding warrants and options (described in Note 11 — Equity Based Compensation, Note 12 — Warrants and Note 13 — Stockholders’ Equity), were not included in the computation of Loss per Share above as to do so would have been antidilutive for the periods presented. These potentially dilutive warrants and options totaled approximately 8.0 million shares as of December 31, 2013.

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Dec. 31, 2013
Commitments and Contingencies	'
Commitments and Contingencies	'
	Note 16—Commitments and Contingencies
	The Karlsson Group Acquisition
	In conjunction with the Karlsson Group Acquisition, we have the following commitments and contingencies:
	a)             if we are unable to prepay the entire $25 million discounted payoff amount of the KG Note balance on or before March 10, 2014 pursuant to the December 10, 2013 extension agreement with the Karlsson Group, we will be in default of the KG Note without any ability to cure the default and with all amounts then owing to be immediately due and payable as provided for under our debt agreement with the Karlsson Group that was in effect just prior to the extension agreement, which we estimate would total $151.7 million at March 10, 2014. The Karlsson Group would also have the right to foreclose on all of our assets. If we are unable to raise sufficient funds to pay off the Karlsson Group debt on or before March 10, 2014, we anticipate that we would voluntarily file for bankruptcy protection rather than permit the Karlsson Group to initiate foreclosure proceedings.
	b)             for any amounts raised by the Company through any equity or debt offering, we are required to:
	·                  place 50% of the net proceeds of the next $18.8 million of capital raised into escrow (for a total of $9.4 million), which funds may be released solely to fund specified development expenses for the Holbrook Project.*
	·                  pay the Karlsson Group 10% of the gross proceeds raised as a prepayment of the outstanding KG Note balance.*
	* Excludes the next $1 million of capital raised by the Company on or before March 10, 2014.
	c)              to the extent we are unable to retire the KG Note for the discounted payoff amount of $25 million on or before March 10, 2014, we have agreed to compensate the Karlsson Group for any incremental income tax liabilities attributable to an increase in federal or state income tax rates over the tax rates that were in effect for 2012, such that they are made whole with respect to any such increase in tax liabilities. We have also agreed to compensate the Karlsson Group for certain interest charges imposed on the deferred tax liabilities as a result of the application the “installment sale” rules of the Internal Revenue Code.
	d)             in the event of a sale, directly or indirectly, of at least 50% of AWP or a merger of AWP with or into an unaffiliated entity on or prior to February 1, 2018, the Karlsson Group is entitled to a one-time payment of 10% of the net proceeds in excess of $200 million received by the Company.
	e)              we are required to pay the Karlsson Group 2% of gross potash sales from any of our current or future acquired leases, licenses and permits.
	f)               we have agreed to adjust the exercise price on the 172,117 warrants currently held by the Karlsson Group to the lowest price per share of our common stock sold between November 14, 2013 and March 10, 2014, but in no event higher than the current exercise price of $12.50 per share for the warrant issued on May 30, 2012 and $6.00 per share for the warrant issued on June 26, 2013.
	g)              upon payment of the discounted payoff amount of $25 million on or before March 10, 2014, we have agreed to:
	·                  grant the Karlsson Group a new, five year warrant for 750,000 shares having an exercise price equal to the lowest price per share of our common stock sold between November 14, 2013 and March 10, 2014.
	·                  pay the Karlsson Group’s legal fees in connection with the preparation and negotiation of the December 10, 2013 extension agreement. In connection with this, we made a payment of $50,000 on December 13, 2013 and $100,000 on February 12, 2014.  Any remaining balance is due and payable on the earlier of (i) March 10, 2014 and (ii) two days following payment of the $25 million discounted payoff amount.  Our December 31, 2013 financial statements include an accrual of $30,000 reflecting our best estimate of these remaining legal fees to be paid although the actual amount could be substantially more or less than this amount.
	Royalties
	In addition to the 2% royalty to the Karlsson Group, we have the following royalty or revenue interest commitments once we have production from our Holbrook Project:
	·                  1% revenue interest to Buffalo Management;
	·                  1% royalty interest to Grandhaven;
	·                  Royalties of a sliding scale nature on gross sales from our private mineral estate sections;
	·                  Royalties of a sliding scale nature on gross sales from our Arizona state sections, although no formal agreement has been made at his time.
	Major Contractual Obligations
	(amounts in thousands)	Less than 1-year		1-2 years	Thereafter	Total
	Debt obligations*	25,000	*	—	—	25,000	*
	Land and lease payment**	336		609	582	1,527
	*Assumes the Company’s prepayment of the Karlsson Note on March 10, 2014 for the discounted payment amount of $25.0 million and the simultaneous extinguishment of the Apollo Notes for shares of our common stock. If we are unable to pay the $25.0 million discounted amount on the Karlsson Note by March 10, 2014, the entire undiscounted amount then owing under the Karlsson Note as well as the amounts then owing under the Apollo Notes would become immediately due and payable, totaling $159.1 million as of that date.
	** Amounts may change in the future as mineral leases are converted to mining leases.
	The Apollo Notes
	On January 10, 2014 we entered into an agreement with the holders of our Apollo notes pursuant to which we owed an aggregate amount of approximately $7.3 million in principal and interest at December 31, 2013.  This agreement provides that upon repayment or extinguishment of our senior secured debt owing to the Karlsson Group on or before March 10, 2014 in accordance with the terms of the December 10, 2013 extension agreement, and in any event for consideration having an aggregate value less than or equal to 17.0% of the aggregate amount owed under the Karlsson Group debt (including in respect of accrued interest and tax gross-up obligations), we may repay the Apollo notes by issuance of a number of shares of our common stock with an aggregate value of 17% of all amounts owing under the Apollo notes (including accrued interest). To the extent we have not repaid or extinguished the Karlsson debt on or before March 10, 2014, the entire aggregate amount of approximately $7.4 million due under the Apollo Notes as of March 10, 2014 would be immediately due and payable.
	In the event of any equity or debt offering completed by the Company while the Apollo notes remain outstanding, we have agreed to pay Apollo 10% of the gross proceeds raised as a prepayment of the outstanding principal; provided that the next $1 million of capital raised by us between now and March 10, 2014 is excluded from this provision.
	Common Stock and Warrant Commitments
	As of December 31, 2013, the Company had remaining commitments to issue an additional 9,000 shares of our common in exchange for services under an investor relations consulting agreement with COR Advisors LLC. The 9,000 shares of common stock are due in quarterly increments of 1,500 shares each with the next quarterly increment having been issued on January 5, 2014. We do not pay a cash fee under this agreement.
	As of December 31, 2013, we had 3,936,677 Series A warrants outstanding having full ratchet anti-dilution protection rights and another 1,787,171 warrants containing full ratchet protection rights to $3.50 per share. The exercise price for all of these warrants is $4.05 and all have an expiration date in 2018.
	·      On February 12, 2014 we reduced the exercise price on 747,298 of our Series A Warrants issued in our June 2013 public offering from $4.05 to $1.50 and all 747,298 of these warrants were exercised.  In conjunction with the exercise we issued the investors 747,298 new Series A Warrants with an exercise price of $1.50, exercisable for five years only upon stockholder approval of the exercise.  Pursuant to the full ratchet anti-dilution terms in our Series A Warrants, the exercise price of our remaining outstanding Series A Warrants were adjusted to $1.50 and we issued an additional 5,362,190 Series A Warrants to holders.  As of February 14, 2014 we had 9,298,867 Series A Warrants outstanding.
	At December 31, 2013, 916,668 Series B Warrants were outstanding, all of which expired on January 9, 2014 unexercised. These Series B Warrants had an exercise price of $6.00 per share and were exercisable for one share of our common stock and one Series A Warrant. Each Series A Warrant issued in the exercise of a Series B Warrant would have had a five year term, an initial exercise price of $6.00 and full ratchet anti-dilution protection.
	At December 31, 2013, 1,787,171 warrants with an exercise price of $4.05 per share were held by Buffalo Management.  These warrants have full ratchet anti-dilution protection down to an issuance price of $3.50 per share.
	·      In conjunction with the February 12, 2014 capital raise the strike price on the 1,787,171 Buffalo warrants was reduced from $4.05 to $3.50 and we issued Buffalo Management 280,841 additional warrants with a strike price of $3.50 pursuant to the full ratchet anti-dilution provision.
	For warrants with full ratchet anti-dilution protection, any issuances of common stock (or securities exercisable into common stock) at a price below the exercise price of the warrants results in a reduction in the exercise price of the warrants to the new issuance or strike price and a corresponding increase in the number of warrants issued. For example, if an investor held 300 warrants with an exercise price of $4.00 and we issued new shares of common stock at $3.00 per share, the strike price on the warrants would be reduced to $3.00 and the investor would receive an additional 100 warrants with a $3.00 exercise price.
	As noted above, the Company also has commitments to (i) adjust the exercise price on the 172,117 warrants currently held by the Karlsson Group to the lowest price per share of our common stock sold between November 14, 2013 and March 10, 2014 and (ii) grant the Karlsson Group a new, five year warrant for 750,000 shares having an exercise price equal to the lowest price per share of our common stock sold between November 14, 2013 and March 10, 2014.
	Litigation
	On April 26, 2013, we received correspondence from a stockholder who purchased $10.0 million of shares in our November 2012 public offering asserting a right to rescind the purchase based on violation of securities laws in connection with that offering.  In a related letter dated June 14, 2013, the four underwriters in our November 2012 public offering notified us that they received a letter from the same stockholder in which the stockholder sought to void its purchase of shares in our November 2012 public offering. Pursuant to the terms of the underwriting agreement we entered into with the underwriters in our November 2012 public offering, we could be required to appoint counsel for the underwriters to advise on this matter, subject to their determination that counsel is satisfactory, or, alternatively, we could be required to authorize the underwriters to employ counsel at our expense. We believe the claim is without merit and intend to vigorously defend against it.  No litigation has been commenced in this matter.
	In the normal course of operations, Prospect and its subsidiaries may be subject to litigation. As of December 31, 2013, there were no material litigation matters. The Company holds various insurance policies in an attempt to protect it and investors.

Fair_Value_Measurement

Fair Value Measurement	9 Months Ended
	Dec. 31, 2013
Fair Value Measurement	'
Fair Value Measurement	'
	Note 17—Fair Value Measurement
	US GAAP defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The standards establish a fair value hierarchy that distinguishes between (1) market participant assumptions developed based on market data obtained from independent sources (observable inputs) and (2) an entity’s own assumptions about market participant assumptions developed based on the best information available in the circumstances (unobservable inputs). The fair value hierarchy consists of three broad levels, which gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The three levels of the fair value hierarchy are described below:
	·                  Level 1—Quoted prices in active markets for identical assets and liabilities.
	·                  Level 2—Quoted prices in active markets for similar assets and liabilities, quoted prices for identical or similar instruments in markets that are not active, and model-derived valuations whose inputs are observable or whose significant value drivers are observable.
	·                  Level 3—Significant inputs to the valuation model are unobservable.
	The following tables present information about financial instruments recognized at fair value as of December 31, 2013 and March 31, 2013 and indicate the fair value hierarchy:
		December 31, 2013										March 31, 2013
	(in thousands)	Level 1			Level 2			Level 3		Total		Level 1		Level 2		Level 3		Total
	Liabilities:
	Tax compensation*	—			19,152			—		19,152		—		6,226		—		6,226
	Buffalo embedded derivative	—			—			650		650		—		—		—		—
	Grandhaven Option**	—			—			—		—		—		—		—		—
	Derivative warrant liability*	—			—			12,481		12,481		—		—		—		—
	Total liabilities	$	—		$	19,152		$	13,131	$	32,283	$	—	$	6,226	$	—	6,226
	* Measured on a recurring basis (at least annually).
	** Represents Grandhaven’s option to exchange their royalty interest for shares of the Company’s common stock.
	The estimated fair value of the Company’s debt (all non-recurring) is as follows:
		Carrying Value			Fair
					Value
		(In thousands)
	December 31, 2013 (Level 3)	$	116,536		$	117,823
	The following table sets forth a summary of the qualitative information related to the unobservable inputs used in the calculation of the Company’s Level 3 financial liabilities for the nine months ended December 31, 2013:
	Description	Valuation Technique		Unobservable Inputs
	Grandhaven Option	Discounted cash flow		Discount rate, future potash prices and mine life
	Derivative warrant liability	Binomial-Lattice valuation model		Underlying price, term, volatility and risk free interest rate
	KG derivative warrant liability	Binomial-Lattice valuation model with probability weighted pricing scenarios		Underlying price, exercise price, term, volatility and risk free interest rate
	Indebtedness	Discounted cash flow		Discount rate
	Buffalo preferred stock put option	Discounted cash flow		Discount rate, preferred stock redemption scenarios, future potash prices and mine life
	The following table sets forth a summary of changes in the fair value of the Company’s Level 3 financial liabilities for the nine months ended December 31, 2013:
		Derivative Warrant			Very Hungry			Buffalo Embedded		Grandhaven
		Liability			Embedded			Derivative		Option*
					Derivative
	Balance at March 31, 2013	$	—		$	—		$	—	$	—
	Mark-to-market adjustment	12,481			—			—		—
	Extinguishment — debt (net of amortization)	—			—			—		—
	New instrument — initial valuation	—			2,900			650		—
	Extinguishment — embedded derivative	—			(2,900		)	—		—
	Balance at December 31, 2013	$	12,481		$	—		$	650	$	—
	* Represents Grandhaven’s option to exchange their royalty interest for shares of the Company’s common stock.

Subsequent_Events

Subsequent Events	9 Months Ended
	Dec. 31, 2013
Subsequent Events	'
Subsequent Events	'
	Note 18—Subsequent Events
	Nasdaq delisting notice and appeal
	On April 25, 2013, we received written notification from The Nasdaq Stock Market that we were no longer in compliance with Nasdaq Listing Rule 5550(b)(2) because the market value of our listed securities had fallen below the $35 million minimum requirement for continued listing on the Nasdaq Capital Market for a period of at least 30 consecutive business days. Under Nasdaq Listing Rule 5810(c)(3)(C), we had 180 calendar days to regain compliance. Compliance can be achieved by meeting the $35 million minimum requirement for market value of listed securities for a minimum of 10 consecutive business days during the 180-day compliance period.
	On October 23, 2013 we received written notification from The Nasdaq Stock Market that we have not regained compliance during that period and that our common stock would be delisted at the open of business on November 1, 2013.  The Nasdaq rules permitted us to appeal the delisting determination to a Nasdaq Hearing Panel and on December 11, 2013 our appeal was heard by Nasdaq.
	On January 21, 2014, we received written notification from The Nasdaq Hearing Panel that our request for additional time to regain compliance had been granted.  We now have until February 28, 2014 to regain compliance with the $35 million minimum market cap requirement.  In the event the Company is unable to achieve compliance by that date, our securities may be delisted from The Nasdaq Stock Market.  If our stock is delisted, we intend to take the steps necessary to have our common stock quoted on the OTC Bulletin or in the “Pink Sheets”.
	Restructuring of Senior Unsecured Debt
	On January 10, 2014 we entered into an agreement with the holders of our two senior promissory notes pursuant to which we owe an aggregate amount of approximately $7.3 million in principal and interest.  The agreement provides that upon repayment or extinguishment of our senior secured debt owing to the Karlsson Group, Inc. on or before March 10, 2014 in accordance with the terms of the Extension Agreement and in any event for consideration with aggregate value less than or equal to 17% of the aggregate amount outstanding thereunder (including in respect of accrued interest and tax gross-up obligations) we may repay the notes by issuance of a number of shares of our common stock with an aggregate value of 17% of all amounts owing under the notes (including accrued interest).
	Capital Raise
	Effective February 12, 2014, we reduced the exercise price from $4.05 to $1.50 on our Series A Warrants issued in our June 26, 2013 public offering and the holders of 747,298 of these warrants exercised their warrants resulting in gross proceeds of $1,120,947 and net proceeds of $995,947.  We issued investors a new Series A Warrant with an exercise price of $1.50 for each warrant exercised, exercisable for five years only upon stockholder approval of the exercise.  The exercise price of our remaining outstanding Series A Warrants was adjusted to $1.50 pursuant to the full ratchet anti-dilution terms of our remaining outstanding Series A Warrants.  Pursuant to the full ratchet anti-dilution terms in the warrants, the exercise price of our remaining outstanding Series A Warrants was adjusted to $1.50 and we issued an additional 5,362,190 Series A Warrants and the strike price on the 1,787,171 Buffalo warrants was reduced from $4.05 to $3.50 and we issued Buffalo Management 280,841 additional warrants with a strike price of $3.50.

Summary_of_Significant_Account1

Summary of Significant Accounting Principles (Policies)	9 Months Ended
	Dec. 31, 2013
Summary of Significant Accounting Principles	'
Basis of Presentation	'
	Basis of Presentation
	The accompanying unaudited Interim Condensed Consolidated Financial Statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”), the instructions to Form 10-Q and Article 10 of Regulation S-X. In management’s opinion, all of the normal and recurring adjustments necessary to fairly present the interim financial information set forth herein have been included. The results of operations for interim periods are not necessarily indicative of the operating results of a full year or of future years. These interim financial statements follow the same accounting policies and methods of their application as the most recent annual financial statements unless specifically discussed below. These interim financial statements are unaudited and should be read in conjunction with the Company’s audited financial statements and related footnotes for the year ended March 31, 2013 included in the Company’s Annual Report on Form 10-K/A filed with the SEC on Febarury 12, 2014.
	We have incurred net losses totaling $198.2 million since inception and at December 31, 2013 we had a working capital deficit of $167.4 million. These consolidated interim financial statements have been prepared on a going concern basis, which contemplates the realization of assets and settlement of liabilities in the normal course of business for the foreseeable future and do not give effect to any adjustments which would be necessary should the Company be unable to continue as a going concern.
Use of Estimates	'
	Use of Estimates
	The preparation of the Company’s consolidated financial statements requires management to make judgments, estimates and assumptions that affect the reported amounts of assets and liabilities and related disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of expenses incurred during the reporting period. The Company bases its estimates on various assumptions that are believed to be reasonable under the circumstances. Accordingly, actual results may differ significantly from these estimates under different assumptions or conditions.
Mineral Properties	'
	Mineral Properties
	The Company is primarily engaged in the acquisition, exploration and exploitation of mineral properties with the objective of extracting minerals from these properties. Mineral property exploration costs are expensed as incurred. Costs for acquired mineral property are capitalized and then impaired if the criteria for capitalization are not met. Capitalization of mine development costs that meet the definition of an asset will commence once we have proven and probable reserves in accordance with SEC Industry Guide 7.
	Mineral properties, land and water rights are periodically assessed for impairment of value, and any subsequent losses are charged to operations at the time of impairment.  If a property is abandoned or sold, a gain or loss is recognized and included in the consolidated statement of operations.
	In the event that a mineral property is acquired through the issuance of the Company’s shares, the mineral property is recorded at the fair value of the respective property or the fair value of common shares and other instruments issued, whichever is more readily determinable. When mineral properties are acquired under option agreements with future acquisition payments to be made at the sole discretion of the Company, those future payments, whether in cash, shares, or other instruments are recorded only when the Company has made or is obliged to make the payment or issue the shares or instruments.
Allocation of Costs	'
	Allocation of Costs
	From time to time our capital raise activities will result in the issuance of more than one security, such as shares of our common stock and warrants to purchase our common stock.  In these cases, we will allocate the costs of that capital raise between the various securities issued based on the relative fair value of each security issued.
Recent Accounting Pronouncements	'
	Recent Accounting Pronouncements
	The Company has considered recently issued accounting pronouncements and does not believe that such pronouncements are of significance, or potential significance, to the Company.

Other_Current_Assets_Tables

Other Current Assets (Tables)	9 Months Ended
	Dec. 31, 2013
Other Current Assets	'
Schedule of other current assets	'
		December 31, 2013		March 31, 2013
		(thousands)		(thousands)
		(unaudited)
	Prepaid insurance & deposits	$	186	276
	Land purchase option	—		500
	Deferred financing fees	70		—
	Other	41		395
	Total other current assets	$	297	$	1,171

Mineral_Properties_Tables

Mineral Properties (Tables)	9 Months Ended
	Dec. 31, 2013
Mineral Properties	'
Schedule of mineral properties	'
		December 31, 2013		March 31, 2013
		(thousands)		(thousands)
		(unaudited)
	Karlsson Group contribution of mineral rights and exploration permits	$	10,357	$	11,000
	Payments to private landowners for mineral rights	2,641		2,641
	Leasehold options	49		49
	Total mineral properties	$	13,047	$	13,690

Accounts_Payable_and_Accrued_L1

Accounts Payable and Accrued Liabilities (Tables)	9 Months Ended
	Dec. 31, 2013
Accounts Payable and Accrued Liabilities	'
Schedule of accounts payable and accrued liabilities	'
		December 31, 2013		March 31, 2013
		(thousands)		(thousands)
		(unaudited)
	Drilling/permitting	$	174	$	382
	Engineering	1,617		1,796
	Private leaseholder obligations	—		1,500
	Legal	678		720
	Board of Directors’ fees	125		125
	Off-take arrange fee	50		1,588
	Compensation and other	2,049		1,245
	Total accounts payable and accrued liabilities	$	4,693	$	7,356

Debt_and_Tax_Compensation_on_N1

Debt and Tax Compensation on Note Payable (Tables)	9 Months Ended
	Dec. 31, 2013
Debt and Tax Compensation on Note Payable	'
Schedule of company's indebtedness	'
		December 31, 2013			March 31, 2013
		(thousands)			(thousands)
		(unaudited)
	Karlsson senior secured note	$	120,079		$	115,282
	Apollo unsecured notes	6,654			6,750
	Tax compensation on Karlsson senior secured note	19,152			6,226
	Total current debt and tax compensation	145,885			128,258
	Less: Unamortized debt discount*	(10,197		)	—
	Less: current portion of debt and tax compensation	(135,688		)	(128,258		)
	Total long-term debt and tax compensation	$	—		$	—
	* Includes $13,300 of gross discount on the Karlsson Note, net of amortized discount of $3,103 at December 31, 2013.

Related_Party_Transactions_Tab

Related Party Transactions (Tables)	9 Months Ended
	Dec. 31, 2013
Related Party Transactions	'
Schedule of Stock and Warrants outstanding for Quincy Prelude and Buffalo's holdings	'
	As of December 31, 2013, Quincy Prelude and Buffalo’s holdings included the following:
	Stock and Warrants	Quantity	Strike Price ($)		Expiration Date
	Warrants	36,271	187.5		2016
	Warrants	35,410	130		2017
	Warrants*	1,787,171	4.05		2018
	Common Stock	63,763	N/A		N/A
	Preferred Stock 8% Cumulative	15,000,000	N/A		N/A
	Options**	4,000	130		2022
	Options**	2,000	212.5		2021
	*In conjunction with the February 12, 2014 capital raise the strike price on the 1,787,171 Buffalo warrants was reduced from $4.05 to $3.50 and we issued Buffalo Management 280,841 additional warrants with a strike price of $3.50 pursuant to the full ratchet anti-dilution provision.
	**Options held by Chad Brownstein, our Executive Vice Chairman
Schedule of holdings	'
	At December 31, 2013, Hexagon and its affiliates’ holdings consisted of the following:
	Entity	Quantity	Exercise Price			Expiration Date
	Common Stock Held
	Very Hungry LLC	891,112	N/A			N/A
	Scott Reiman Trust	199,086	N/A			N/A
	Total Common Stock	1,090,198
	Warrants
	Very Hungry LLC (1)	739,337	$	6		2014
	Very Hungry LLC	96,833	$	15		2017
	Very Hungry LLC (2)	1,095,314	$	4.05		2018
	Scott Reiman Trust (1)	177,331	$	6		2014
	Scott Reiman Trust	37,874	$	15		2017
	Scott Reiman Trust (2)	262,713	$	4.05		2018
	Total Warrants	2,409,402
	(1)   Series B warrants entitling the holder to purchase for $6.00 per unit one share of our common stock and one Series A warrant to purchase an additional share of our common stock for $6.00 per share.  If exercised, each Series A warrant would have full ratchet anti-dilution protection. All of these Series B warrants expired unexercised on January 9, 2014.
	(2)   Warrants have full ratchet anti-dilution protection.

Equity_Based_Compensation_Tabl

Equity Based Compensation (Tables)	9 Months Ended
	Dec. 31, 2013
Equity Based Compensation	'
Schedule of options outstanding	'
	As of December 31, 2013, we had the following options outstanding:
	Exercise Price ($)	Outstanding Options		Vested Options		Expiration
	2.25	75,000		75,000		2023
	2.36	610,000		610,000		2023
	130	95,000		88,334		2022
	144	6,000		6,000		2022
	212.5	60,300		60,300		2021
		846,300		839,634
Schedule of assumptions used in estimating the fair value of awards granted	'
	Other assumptions used in estimating the fair value of awards granted through December 31, 2013 included the following:
	Expected Term	0.25 to 9.25 years
	Volatility*	113.4% to 165.62%*
	Risk-Free Rate	0.04% to 1.73%
	Dividend Yield	—
	*                 The Company’s estimates of expected volatility are based on the historic volatility of the Company’s common stock as well as the historic volatility of the Company’s peers due to the limited availability of historical trading information on the Company itself.
Summary of stock option activity under the Plans	'
	Stock Options	Shares		Weighted-		Aggregate	Weighted-
				Average		Intrinsic	Average
				Exercise		Value ($000)	Remaining
				Price			Term (Years)
	Outstanding at March 31, 2013	186,160		160.72		—	9.02
	Granted	697,000		4.22		—	0
	Exercised	—		—		—	—
	Forfeited or expired	(36,860	)	141.67		—	—
	Outstanding at December 31, 2013	846,300		32.66		—	9.59
	Vested at December 31, 2013	839,634		31.88		—	9.59
Summary of status of the non-vested stock options	'
	Non-vested Stock Options	Shares		Weighted
				Average
				Grant Date
				Fair Value
	Non-vested at March 31, 2013	53,883		$	99.71
	Granted	697,000		2.4
	Vested	(730,217	)	6.5
	Forfeited	(14,000	)	130.59
	Non-vested at December 31, 2013	6,666		$	70.71

Warrants_Tables

Warrants (Tables)	9 Months Ended
	Dec. 31, 2013
Warrants	'
Schedule of warrants outstanding	'
	Outstanding Warrants	Exercise Price ($)	Expiration	Notes
	1,000	2.25 – 4.04	2018
	1,787,171	4.05	2018	Contain full ratchet anti-dilution protection to $3.50 per share
	307,424	6.00 – 17.00	2017, 2019	See Note 1 below
	159,468	62.50 – 251.00	2014 - 2018
	2,255,063
Service warrants	'
Warrants	'
Schedule of assumptions used in estimating the fair value of awards granted	'
	Assumptions used in estimating the fair value of service warrants granted through December 31, 2013 included the following:
	Remaining Term	0.08 to 4.84 years
	Volatility*	79.32% to 157.03%
	Risk-Free Rate	0.13% to 1.66%
	Dividend Yield	—
	*The Company’s estimates of expected volatility are based on the historic volatility of the Company’s common stock as well as the historic volatility of the Company’s peers due to the limited availability of historical trading information on the Company itself.
Investor Warrants	'
Warrants	'
Schedule of assumptions used in estimating the fair value of awards granted	'
	Assumptions used in estimating the fair value of investor warrants granted through December 31, 2013 included the following:
	Remaining Term	0.02 to 5.4 years
	Volatility*	71.07% to 164.38%
	Risk-Free Rate	0.13% to 1.89%
	Dividend Yield	—
	*The Company’s estimates of expected volatility are based on the historic volatility of the Company’s common stock as well as the historic volatility of the Company’s peers due to the limited availability of historical trading information on the Company itself.

Loss_per_Share_Tables

Loss per Share (Tables)	9 Months Ended
	Dec. 31, 2013
Loss per Share	'
Computation of basic and fully diluted weighted average shares outstanding and loss per share of common stock	'
	The following sets forth the computation of basic and fully diluted weighted average shares outstanding and loss per share of common stock for the periods indicated (unaudited, in thousands except for per share amounts):
		Three Months			Three Months			Nine Months			Nine Months			Cumulative from
		Ended December			Ended December			Ended December			Ended December			August 5, 2010
		31, 2013			31, 2012			31, 2013			31, 2012			(Inception)
														through
														December
														31, 2013
		(unaudited)			(unaudited)			(unaudited)			(unaudited)			(unaudited)
	Numerator
	Net loss attributable to Prospect Global Resources Inc.	$	(20,585	)	$	(34,085	)	$	(37,930	)	$	(62,764	)	$	(198,184	)
	Undeclared Preferred Stock Dividends	(467		)	—			(467		)	—			(467		)
	Net loss applicable to common shares for basic and diluted earnings per share	(21,052		)	(34,085		)	(38,397		)	(62,764		)	(198,651		)
	Denominator
	Weighted average number of common shares outstanding — basic	4,203			1,286			2,820			1,058			1,393
	Dilution effect of restricted stock and warrants	—			—			—			—			—
	Weighted average number of common shares outstanding — fully diluted	4,203			1,286			2,820			1,058			1,393
	Basic and fully diluted loss per share of common stock	$	(5.01	)	$	(26.50	)	$	(13.62	)	$	(59.32	)	$	(142.61	)

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	9 Months Ended
	Dec. 31, 2013
Commitments and Contingencies	'
Schedule of major contractual obligations	'
	(amounts in thousands)	Less than 1-year		1-2 years	Thereafter	Total
	Debt obligations*	25,000	*	—	—	25,000	*
	Land and lease payment**	336		609	582	1,527
	*Assumes the Company’s prepayment of the Karlsson Note on March 10, 2014 for the discounted payment amount of $25.0 million and the simultaneous extinguishment of the Apollo Notes for shares of our common stock. If we are unable to pay the $25.0 million discounted amount on the Karlsson Note by March 10, 2014, the entire undiscounted amount then owing under the Karlsson Note as well as the amounts then owing under the Apollo Notes would become immediately due and payable, totaling $159.1 million as of that date.
	** Amounts may change in the future as mineral leases are converted to mining leases.

Fair_Value_Measurement_Tables

Fair Value Measurement (Tables)	9 Months Ended
	Dec. 31, 2013
Fair Value Measurement	'
Schedule of information about financial instruments recognized at fair value	'
		December 31, 2013										March 31, 2013
	(in thousands)	Level 1			Level 2			Level 3		Total		Level 1		Level 2		Level 3		Total
	Liabilities:
	Tax compensation*	—			19,152			—		19,152		—		6,226		—		6,226
	Buffalo embedded derivative	—			—			650		650		—		—		—		—
	Grandhaven Option**	—			—			—		—		—		—		—		—
	Derivative warrant liability*	—			—			12,481		12,481		—		—		—		—
	Total liabilities	$	—		$	19,152		$	13,131	$	32,283	$	—	$	6,226	$	—	6,226
	* Measured on a recurring basis (at least annually).
	** Represents Grandhaven’s option to exchange their royalty interest for shares of the Company’s common stock.
Schedule of estimated fair values of the Company's debt (all non-recurring)	'
		Carrying Value			Fair
					Value
		(In thousands)
	December 31, 2013 (Level 3)	$	116,536		$	117,823
Summary of qualitative information related to the unobservable inputs used in the calculation of the Company's Level 3 financial liabilities	'
	The following table sets forth a summary of the qualitative information related to the unobservable inputs used in the calculation of the Company’s Level 3 financial liabilities for the nine months ended December 31, 2013:
	Description	Valuation Technique		Unobservable Inputs
	Grandhaven Option	Discounted cash flow		Discount rate, future potash prices and mine life
	Derivative warrant liability	Binomial-Lattice valuation model		Underlying price, term, volatility and risk free interest rate
	KG derivative warrant liability	Binomial-Lattice valuation model with probability weighted pricing scenarios		Underlying price, exercise price, term, volatility and risk free interest rate
	Indebtedness	Discounted cash flow		Discount rate
	Buffalo preferred stock put option	Discounted cash flow		Discount rate, preferred stock redemption scenarios, future potash prices and mine life
Schedule of a summary of changes in the fair value of the Company's Level 3 financial liabilities	'
		Derivative Warrant			Very Hungry			Buffalo Embedded		Grandhaven
		Liability			Embedded			Derivative		Option*
					Derivative
	Balance at March 31, 2013	$	—		$	—		$	—	$	—
	Mark-to-market adjustment	12,481			—			—		—
	Extinguishment — debt (net of amortization)	—			—			—		—
	New instrument — initial valuation	—			2,900			650		—
	Extinguishment — embedded derivative	—			(2,900		)	—		—
	Balance at December 31, 2013	$	12,481		$	—		$	650	$	—
	* Represents Grandhaven’s option to exchange their royalty interest for shares of the Company’s common stock.

Organization_and_Business_Oper1

Organization and Business Operations (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2013	Jul. 31, 2011	Aug. 01, 2012	Dec. 31, 2013	Nov. 30, 2011	Mar. 31, 2013
In Millions, unless otherwise specified	item	Sharing agreement	AWP	AWP	AWP	AWP	AWP
	acre	item	Sharing agreement	Karlsson Group	Karlsson Group	Karlsson Group	Karlsson Group
		acre	acre	item		acre
			item			item
Organization and Business Operations	'	'	'	'	'	'	'
Amount of cash contributions made	'	'	'	'	'	$11	'
Number of private sections	'	'	'	'	'	8	'
Number of Arizona state sections on which permits are held	'	'	'	'	'	42	'
Area transferred in exchange for equity interest (in acres)	'	'	'	'	'	31,000	'
Ownership percentage	'	'	'	'	'	50.00%	'
Number of private mineral estate sections covered	'	101	101	'	'	'	'
Area of private mineral leases related to private mineral estates covered (in acres)	'	62,000	62,000	'	'	'	'
Ownership percentage acquired from Karlsson Group	'	'	'	50.00%	50.00%	'	50.00%
Number of leases for which rights relinquished	'	'	'	8	'	'	'
Number of leases on mineral estate sections on which exploration permits are held	143	'	'	'	'	'	'
Area of mineral leases sections on which exploration permits are held (in acres)	88,175	'	'	'	'	'	'

Liquidity_Details

Liquidity (Details) (USD $)	Dec. 31, 2013	Mar. 31, 2013	Feb. 14, 2014
			Subsequent Events
Liquidity	'	'	'
Cash available for general corporate purposes	'	'	$800,000
Expected payment of certain obligations from cash available for general corporate purposes	'	'	400,000
Cash available for general corporate purposes after expected payment of certain obligation	'	'	400,000
Payment due on or before March 10, 2014 under Karlsson debt	$145,885,000	$128,258,000	$25,000,000

Summary_of_Significant_Account2

Summary of Significant Accounting Principles (Details) (USD $)	3 Months Ended		9 Months Ended		41 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013
Summary of Significant Accounting Principles	'	'	'	'	'
Net loss	($20,585,000)	($34,085,000)	($37,930,000)	($62,764,000)	($198,184,000)
Working capital deficit	$167,400,000	'	$167,400,000	'	$167,400,000

Other_Current_Assets_Details

Other Current Assets (Details) (USD $)	Dec. 31, 2013	Mar. 31, 2013
In Thousands, unless otherwise specified
Other Current Assets	'	'
Prepaid insurance & deposits	$186	$276
Land purchase option	'	500
Deferred financing fees	70	'
Other	41	395
Total other current assets	$297	$1,171

Mineral_Properties_Details

Mineral Properties (Details) (USD $)	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2013	Jul. 31, 2011	Dec. 31, 2013	Mar. 31, 2013	Aug. 01, 2012	Dec. 31, 2013	Mar. 31, 2013
			July 2011 Potash Sharing Agreement	AWP	Karlsson Group	Karlsson Group	Karlsson Group	Karlsson Group	Karlsson Group
			item	July 2011 Potash Sharing Agreement	item		AWP	AWP	AWP
			acre	item
				acre
Mineral Properties	'	'	'	'	'	'	'	'	'
Ownership percentage acquired from Karlsson Group	'	'	'	'	'	'	50.00%	50.00%	50.00%
Number of permits on renewed	'	'	'	'	4	'	'	'	'
Reduction in value of properties	'	'	'	'	$600,000	'	'	'	'
Number of private mineral estate sections covered	'	'	101	101	'	'	'	'	'
Area of private mineral leases related to private mineral estates covered (in acres)	'	'	62,000	62,000	'	'	'	'	'
Karlsson Group contribution of mineral rights and exploration permits	'	'	'	'	10,357,000	11,000,000	'	'	'
Payments to private landowners for mineral rights	2,641,000	2,641,000	'	'	'	'	'	'	'
Leasehold options	49,000	49,000	'	'	'	'	'	'	'
Total mineral properties	$13,047,000	$13,690,000	'	'	$11,000,000	$11,000,000	'	'	'

Accounts_Payable_and_Accrued_L2

Accounts Payable and Accrued Liabilities (Details) (USD $)	9 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Mar. 31, 2013
Accounts Payable and Accrued Liabilities	'	'
Drilling/permitting	$174	$382
Engineering	1,617	1,796
Private leaseholder obligations	'	1,500
Legal	678	720
Board of Directors' fees	125	125
Off-take arrange fee	50	1,588
Compensation and other	2,049	1,245
Total accounts payable and accrued liabilities	$4,693	$7,356

Debt_and_Tax_Compensation_on_N2

Debt and Tax Compensation on Note Payable (Details) (USD $)

3 Months Ended

9 Months Ended

41 Months Ended

9 Months Ended

0 Months Ended

3 Months Ended

9 Months Ended

0 Months Ended

3 Months Ended

9 Months Ended

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Mar. 31, 2013

Dec. 31, 2013

Mar. 31, 2013

Dec. 31, 2013

Dec. 10, 2013

Mar. 10, 2014

Dec. 31, 2013

Dec. 31, 2012

Mar. 31, 2013

Aug. 01, 2012

Dec. 31, 2013

Dec. 31, 2013

Aug. 01, 2012

Dec. 31, 2013

Mar. 07, 2013

Mar. 10, 2014

Dec. 31, 2013

Dec. 31, 2013

Apollo Notes

Apollo Notes

Karlsson Group

Karlsson Group

Karlsson Group

Karlsson Group

Karlsson Group

Karlsson Group

Karlsson Group

Karlsson Group

Karlsson Group

Karlsson Group

Affiliates of Apollo Global Management, LLC

Affiliates of Apollo Global Management, LLC

Affiliates of Apollo Global Management, LLC

Affiliates of Apollo Global Management, LLC

Affiliates of Apollo Global Management, LLC

Senior secured promissory note

Senior secured promissory note

Senior secured promissory note

Senior secured promissory note

Senior secured promissory note

Senior secured promissory note

Senior secured promissory note

Senior secured promissory note

Senior secured promissory note

Senior secured promissory note

Apollo Notes

Apollo Notes

Apollo Notes

Apollo Notes

Forecast

AWP

AWP

Forecast

item

Forecast

Debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Discounted payoff amount

'

'

'

'

'

'

'

$25,000,000

'

$25,000,000

'

'

'

'

'

'

'

'

'

'

'

Total debt and tax compensation

145,885,000

145,885,000

145,885,000

128,258,000

6,654,000

6,750,000

'

'

'

120,079,000

'

115,282,000

'

151,700,000

'

'

7,400,000

'

'

7,300,000

7,400,000

Estimated fair value of new note

'

'

'

'

'

'

'

134,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Loss on extinguishment

-11,423,000

-49,000

-2,049,000

'

'

'

'

'

'

'

11,400,000

'

'

'

'

'

'

'

'

'

'

Discount on new note

10,197,000

10,197,000

10,197,000

'

'

'

'

'

'

13,300,000

'

'

'

'

'

'

'

'

'

'

'

Carrying value of new note

'

'

'

'

'

'

'

'

'

147,400,000

'

'

'

'

'

'

'

'

'

'

'

Total debt including accrued interest

156,800,000

156,800,000

156,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Tax compensation

'

'

'

'

'

'

19,200,000

'

'

19,152,000

'

6,226,000

'

'

'

'

'

'

'

'

'

Less: Unamortized debt discount

-10,197,000

-10,197,000

-10,197,000

'

'

'

'

'

'

-13,300,000

'

'

'

'

'

'

'

'

'

'

'

Less: current portion of debt and tax compensation

-135,688,000

-135,688,000

-135,688,000

-128,258,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Amortization of debt discount

'

14,586,000

14,586,000

'

'

'

'

'

'

3,103,000

'

'

'

'

'

'

'

'

'

'

'

Accrued interest

10,900,000

10,900,000

10,900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

600,000

'

Face value

'

'

'

'

'

'

'

'

'

'

'

'

125,000,000

'

'

'

'

'

'

'

'

Interest acquired (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

50.00%

'

'

'

'

'

Interest rate (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

9.00%

'

'

'

'

'

'

11.00%

'

Portion of capital raised to be used for payment of debt

'

'

'

'

'

'

'

'

1,000,000

'

'

'

'

'

'

'

'

'

1,000,000

'

'

Term of debt instrument from completion of Definitive Feasibility Study

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'12 months

'

Note payable including principal, accrued interest and compensation for tax matters

'

'

'

'

'

'

'

'

'

149,600,000

'

'

'

'

'

'

'

'

'

'

'

Principal payments payable expressed as a percentage of gross proceeds

'

'

'

'

'

'

'

'

'

10.00%

'

'

'

'

'

'

'

'

'

10.00%

'

Period for mandatory pre-payment of debt

'

'

'

'

'

'

'

'

'

'5 days

'

'

'

'

'

'

'

'

'

'

'

Minimum ownership percentage to avoid pre-payment

'

'

'

'

'

'

'

'

'

'

'

'

'

'

50.00%

'

'

'

'

'

'

Percentage of proceeds from future capital raised required to be placed in escrow

'

50.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Amount of capital raised that is subject to escrow deposit for funding of drilling and the Holbrook Project development under debt covenant

18,800,000

18,800,000

18,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Escrow deposit required

'

9,400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of capital raised to be used for payment of debt

'

20.00%

'

'

'

'

10.00%

'

'

'

'

'

'

'

'

'

'

'

'

10.00%

'

Number of promissory notes issued

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2

'

'

'

Amount of unsecured subordinated promissory notes exchanged

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$6,800,000

'

'

'

Redeemable_Preferred_Stock_Det

Redeemable Preferred Stock (Details) (USD $)	Dec. 31, 2013	Mar. 31, 2013	Aug. 14, 2013	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2013
			Redeemable preferred stock	Redeemable preferred stock	Redeemable preferred stock	Redeemable preferred stock
			t			Buffalo
Redeemable preferred stock	'	'	'	'	'	'
Liquidation value outstanding	$15,000,000	'	'	$15,000,000	$15,000,000	$15,000,000
Dividend rate (as a percent)	'	'	'	'	'	8.00%
Undeclared, cumulative dividends	'	'	'	500,000	500,000	'
Dividends declared	'	'	'	$0	'	'
Period for dividend payment after a specified quantity of potash has first been shipped for delivery from Holbrook Project	'	'	'6 months	'	'	'
Minimum quantity of potash that has first been shipped for delivery from Holbrook Project (in tonnes)	'	'	50,000	'	'	'
Period for redemption by holder of redeemable preferred stock after a specified quantity of potash that has first been shipped for delivery from Holbrook Project	'	'	'3 years	'	'	'
Market capitalization cap percentage for liquidation preference	'	'	10.00%	'	10.00%	'

Redeemable_Preferred_Stock_Det1

Redeemable Preferred Stock (Details 2) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Redeemable Preferred Stock	'
Estimated fair value of derivative liability	$12,481
Embedded derivative	'
Redeemable Preferred Stock	'
Estimated fair value of derivative liability	700
Embedded derivative | Buffalo	'
Redeemable Preferred Stock	'
Estimated fair value of derivative liability	$700

Related_Party_Transactions_Det

Related Party Transactions (Details) (USD $)

0 Months Ended

3 Months Ended

9 Months Ended

41 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

41 Months Ended

0 Months Ended

9 Months Ended

1 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

41 Months Ended

9 Months Ended

9 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

Oct. 04, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Sep. 04, 2013

Mar. 31, 2013

Dec. 31, 2013

Mar. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Feb. 14, 2014

Aug. 14, 2013

Dec. 31, 2013

Feb. 12, 2014

Feb. 11, 2014

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Aug. 14, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Apr. 15, 2013

Dec. 31, 2013

Sep. 30, 2013

Dec. 31, 2013

Dec. 31, 2013

Aug. 14, 2013

Aug. 14, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Feb. 12, 2014

Feb. 12, 2014

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Apr. 15, 2013

Dec. 31, 2013

Options

Options

Options

Options

Subsequent Events

Warrants having full ratchet anti-dilution protection rights to $3.50 per share

Warrants having full ratchet anti-dilution protection rights to $3.50 per share with strike price $4.05

Warrants having full ratchet anti-dilution protection rights to $3.50 per share with strike price $4.05

Warrants having full ratchet anti-dilution protection rights to $3.50 per share with strike price $4.05

Series B Warrants

Warrants having full ratchet anti-dilution protection rights

Warrants having full ratchet anti-dilution protection rights

Preferred Stock

Common Stock

Quincy Prelude LLC

Buffalo

Buffalo

Buffalo

Buffalo

Buffalo

Buffalo

Buffalo

Buffalo

Buffalo

Buffalo

Buffalo

Buffalo

Buffalo

Buffalo

Buffalo

Buffalo

Buffalo

Mr. Brownstein's father

Brownstein Hyatt Farber Schreck, LLP

Brownstein Hyatt Farber Schreck, LLP

Brownstein Hyatt Farber Schreck, LLP

Brownstein Hyatt Farber Schreck, LLP

Grandhaven

Grandhaven

Grandhaven

Very Hungry

Very Hungry

Very Hungry

Very Hungry

Scott Reiman Trust

Scott Reiman Trust

Scott Reiman Trust

Scott Reiman Trust

Very Hungry and the Scott Reiman 1991 Trust

Very Hungry and the Scott Reiman 1991 Trust

Karlsson

Karlsson

Karlsson

Outstanding options expiring in 2022 with exercise price of $130

Outstanding options expiring in 2021 with exercise price of $212.50

Subsequent Events

Subsequent Events

Example

Warrants having full ratchet anti-dilution protection rights

Common Stock

Extension Agreement

Extension Agreement

Warrants having full ratchet anti-dilution protection rights to $3.50 per share with strike price $4.05

Barry Munitz

Preferred Stock

Preferred Stock

Common Stock

Quincy Prelude LLC

Quincy Prelude LLC

Quincy Prelude LLC

Quincy Prelude LLC

Quincy Prelude LLC

Quincy Prelude LLC

Options

Options

AWP

Warrants expiring in 2014

Warrants expiring in 2017

Warrants expiring in 2018

Warrants expiring in 2014

Warrants expiring in 2017

Warrants expiring in 2018

Preferred Stock

Extension Agreement

Extension Agreement

Example

Minimum

warrant

Warrants expiring in 2018

Warrants expiring in 2016

Warrants expiring in 2017

Warrants expiring in 2018

Warrants expiring in 2018

Warrants having full ratchet anti-dilution protection rights

Outstanding options expiring in 2021 with exercise price of $130

Outstanding options expiring in 2021 with exercise price of $212.50

warrant

Subsequent Events

Subsequent Events

Related Party Transactions

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Voting interest held by a stockholder in a related party (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Economic interest held by a stockholder in a related party (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

82.50%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of shares owned by related party

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

15,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Liquidation value

'

$15,000,000

'

$15,000,000

'

$15,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$15,000,000

'

'

'

'

'

'

'

'

'

'

$15,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$5,500,000

'

'

'

Non-voting economic interest held by a stockholder in a related party (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

17.50%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Beneficial ownership held by stockholder in reporting entity (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Amount paid to related party

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

1,100,000

1,400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,500,000

3,200,000

5,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Amount due to related party

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of gross revenue interest

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.00%

'

'

'

2.00%

1.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2.00%

1.00%

2.00%

Number of shares of redeemable preferred stock issued

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

15,000,000

'

'

'

'

'

'

'

'

'

'

'

15,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of warrants issued

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

781,887

'

'

'

1,005,283

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Exercise price (in dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

'

$3.50

$4.05

$1.50

$4.05

$6

'

$4

'

'

'

'

'

'

'

'

'

$4.05

'

'

'

$7.20

'

$187.50

$130

$4.05

$3.50

$3.50

'

'

'

'

'

'

'

'

'

$6

$15

$4.05

'

$6

$15

$4.05

'

'

'

'

'

Share price (in dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Strike price (in dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of additional warrants issued to investor on reduction of strike price

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,787,171

280,841

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Exercise price after issuance of common stock (in dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$3

'

$3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maximum exercise price per share protected from anti-dilution

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$3.50

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gain recorded for the change in fair value of the warrants

'

5,918,000

-324,000

867,000

-5,943,000

-5,099,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Warrants outstanding (in shares)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,787,171

'

'

916,668

3,936,677

300

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

36,271

35,410

1,787,171

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Common Stock Outstanding (in shares)

'

4,191,658

'

4,191,658

'

4,191,658

114,969,415

1,451,914

'

'

'

'

4,940,456

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

63,763

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Preferred Stock 8% Cumulative Outstanding (in shares)

'

15,000,000

'

15,000,000

'

15,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

15,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

15,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Annual cumulative dividend (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

8.00%

'

'

8.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock issued for services (in shares)

748,798

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Exercise price (in dollars per share)

'

'

'

'

'

'

'

'

$32.66

$160.72

$130

$212.50

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$130

'

$212.50

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of shares held by related party

'

'

'

'

'

'

'

'

'

'

4,000

2,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

104,074

'

'

'

2,400

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Amount due to related party included in accrued and other liabilities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

300,000

300,000

300,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of shares of common stock issued /held

'

4,191,658

'

4,191,658

'

4,191,658

114,969,415

1,451,914

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

891,112

'

'

'

199,086

'

'

'

1,090,198

'

'

'

'

Warrants Outstanding (in shares)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

739,337

96,833

1,095,314

'

177,331

37,874

262,713

2,409,402

'

'

'

'

Number of additional shares of common stock called by each warrant

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of additional Series A Warrants called by each warrant (in shares)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Overriding royalty interest (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value of royalty obligation

'

$4,060,000

'

$4,060,000

'

$4,060,000

'

$4,060,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$4,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Assigned royalty interest (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.39%

'

'

'

'

'

'

'

'

'

'

'

'

'

Equity_Based_Compensation_Deta

Equity Based Compensation (Details) (Stock Options, USD $)	0 Months Ended	9 Months Ended		12 Months Ended
In Millions, except Share data, unless otherwise specified	Nov. 01, 2013	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2013
Equity Based Compensation	'	'	'	'
Shares authorized for issuance	'	1,934,000	'	'
Shares authorized expressed as a percentage of outstanding capital stock	'	10.00%	'	'
Fair value assumptions	'	'	'	'
Volatility, Minimum (as a percent)	'	113.40%	'	'
Volatility, Maximum (as a percent)	'	165.62%	'	'
Risk-Free Rate, minimum (as a percent)	'	0.04%	'	'
Risk-Free Rate, maximum (as a percent)	'	1.73%	'	'
Shares	'	'	'	'
Outstanding at the beginning of the period (in shares)	'	186,160	'	'
Granted (in shares)	685,000	697,000	'	'
Forfeited or expired (in shares)	'	-36,860	'	'
Outstanding at the end of the period (in shares)	'	846,300	'	186,160
Vested at the end of the period (in shares)	'	839,634	'	'
Weighted-Average Exercise Price	'	'	'	'
Outstanding at the beginning of the period (in dollars per share)	'	$160.72	'	'
Granted (in dollars per share)	'	$4.22	'	'
Forfeited or expired (in dollars per share)	'	$141.67	'	'
Outstanding at the end of the period (in dollars per share)	'	$32.66	'	$160.72
Vested at the end of the period (in dollars per share)	'	$31.88	'	'
Weighted-Average Remaining Term	'	'	'	'
Outstanding at the beginning of the period	'	'9 years 7 months 2 days	'	'9 years 7 days
Granted during the period	'	'0 years	'	'
Outstanding at the end of the period	'	'9 years 7 months 2 days	'	'9 years 7 days
Vested the end of the period	'	'9 years 7 months 2 days	'	'
Additional disclosures	'	'	'	'
Weighted average grant date fair value (in dollars per share)	'	$2.40	$95.27	'
Non-vested Stock Options, Shares	'	'	'	'
Non-vested at the beginning of the period (in shares)	'	53,883	'	'
Granted (in shares)	685,000	697,000	'	'
Vested (in shares)	'	-730,217	'	'
Forfeited (in shares)	'	-14,000	'	'
Non-vested at the end of the period (in shares)	'	6,666	'	53,883
Non-vested Stock Options, Weighted Average Grant Date Fair Value	'	'	'	'
Non-vested at the beginning of the period (in dollars per share)	'	$99.71	'	'
Granted (in dollars per share)	'	$2.40	'	'
Vested (in dollars per share)	'	$6.50	'	'
Forfeited (in dollars per share)	'	$130.59	'	'
Non-vested at the end of the period (in dollars per share)	'	$70.71	'	$99.71
Additional disclosures	'	'	'	'
Total unrecognized compensation expense (in dollars)	'	$0.20	'	'
Stock-based compensation costs	'	$1.80	$9.70	'
Minimum	'	'	'	'
Fair value assumptions	'	'	'	'
Expected Term	'	'3 months	'	'
Weighted-Average Exercise Price	'	'	'	'
Granted (in dollars per share)	2.25	'	'	'
Maximum	'	'	'	'
Fair value assumptions	'	'	'	'
Expected Term	'	'9 years 3 months	'	'
Weighted-Average Exercise Price	'	'	'	'
Granted (in dollars per share)	2.36	'	'	'
Additional disclosures	'	'	'	'
Weighted-average period over which cost is expected to be recognized	'	'1 year	'	'
Outstanding options expiring in 2023 with exercise price of $2.25	'	'	'	'
Shares	'	'	'	'
Outstanding at the end of the period (in shares)	'	75,000	'	'
Vested at the end of the period (in shares)	'	75,000	'	'
Weighted-Average Exercise Price	'	'	'	'
Outstanding at the end of the period (in dollars per share)	'	$2.25	'	'
Outstanding options expiring in 2023 with exercise price of $2.36	'	'	'	'
Shares	'	'	'	'
Outstanding at the end of the period (in shares)	'	610,000	'	'
Vested at the end of the period (in shares)	'	610,000	'	'
Weighted-Average Exercise Price	'	'	'	'
Outstanding at the end of the period (in dollars per share)	'	$2.36	'	'
Outstanding options expiring in 2022 with exercise price of $130	'	'	'	'
Shares	'	'	'	'
Outstanding at the end of the period (in shares)	'	95,000	'	'
Vested at the end of the period (in shares)	'	88,334	'	'
Weighted-Average Exercise Price	'	'	'	'
Outstanding at the end of the period (in dollars per share)	'	$130	'	'
Outstanding options expiring in 2022 with exercise price of $144	'	'	'	'
Shares	'	'	'	'
Outstanding at the end of the period (in shares)	'	6,000	'	'
Vested at the end of the period (in shares)	'	6,000	'	'
Weighted-Average Exercise Price	'	'	'	'
Outstanding at the end of the period (in dollars per share)	'	$144	'	'
Outstanding options expiring in 2021 with exercise price of $212.50	'	'	'	'
Shares	'	'	'	'
Outstanding at the end of the period (in shares)	'	60,300	'	'
Vested at the end of the period (in shares)	'	60,300	'	'
Weighted-Average Exercise Price	'	'	'	'
Outstanding at the end of the period (in dollars per share)	'	$212.50	'	'

Warrants_Details

Warrants (Details) (USD $)

3 Months Ended

9 Months Ended

41 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

9 Months Ended

0 Months Ended

1 Months Ended

0 Months Ended

9 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

9 Months Ended

0 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 10, 2013

Dec. 31, 2013

Aug. 01, 2012

Dec. 31, 2013

Feb. 12, 2014

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Feb. 12, 2014

Feb. 11, 2014

Sep. 30, 2013

Jun. 26, 2013

30-May-12

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Feb. 12, 2014

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Feb. 12, 2014

Karlsson Group

Karlsson Group

Karlsson Group

Karlsson Group

Series A Warrants

Series A Warrants

Other warrants

Warrants having full ratchet anti-dilution protection rights with exercise price of $2.25 to $4.04

Warrants having full ratchet anti-dilution protection rights with exercise price of $2.25 to $4.04

Warrants having full ratchet anti-dilution protection rights with exercise price of $2.25 to $4.04

Warrants having full ratchet anti-dilution protection rights to $3.50 per share with strike price $4.05

Warrants having full ratchet anti-dilution protection rights to $3.50 per share with strike price $4.05

Warrants having full ratchet anti-dilution protection rights to $3.50 per share with strike price $4.05

Warrants having full ratchet anti-dilution protection rights to $3.50 per share with strike price $4.05

Warrants having full ratchet anti-dilution protection rights with exercise price of $6.00 to $17.00

Warrants having full ratchet anti-dilution protection rights with exercise price of $6.00 to $17.00

Warrants having full ratchet anti-dilution protection rights with exercise price of $6.00 to $17.00

Warrants having full ratchet anti-dilution protection rights with exercise price of $6.00 to $17.00

Warrants having full ratchet anti-dilution protection rights with exercise price of $6.00 to $17.00

Warrants having full ratchet anti-dilution protection rights with exercise price of $6.00 to $17.00

Warrants having full ratchet anti-dilution protection rights with exercise price of $62.50 to $251.00

Warrants having full ratchet anti-dilution protection rights with exercise price of $62.50 to $251.00

Warrants having full ratchet anti-dilution protection rights with exercise price of $62.50 to $251.00

Warrants having full ratchet anti-dilution protection rights

Warrants having full ratchet anti-dilution protection rights

Warrants having full ratchet anti-dilution protection rights

Series B Warrants

Service warrants

Service warrants

Service warrants

Service warrants

Investor Warrants

Investor Warrants

Investor Warrants

Investor Warrants

Warrants expiring in 2018

Warrants expiring in 2018

Note

Note

Note

Subsequent Events

Minimum

Maximum

Subsequent Events

Subsequent Events

Buffalo

warrant

warrant

Minimum

Maximum

Karlsson Group

Minimum

Maximum

Example

Buffalo

Minimum

Maximum

Weighted average

Minimum

Maximum

Weighted average

Buffalo

Buffalo

warrant

warrant

warrant

Subsequent Events

Quincy Prelude LLC

Subsequent Events

Quincy Prelude LLC

Quincy Prelude LLC

Warrants

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Strike price (in dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$3

'

'

'

'

'

'

'

'

'

'

'

'

Outstanding Warrants (in shares)

'

'

'

'

'

'

'

'

'

3,936,677

9,298,867

2,255,063

1,000

'

'

1,787,171

'

'

'

'

'

307,424

'

'

'

159,468

'

'

3,936,677

300

'

916,668

'

'

'

'

7,000,000

'

'

'

1,787,171

'

Exercise price (in dollars per share)

'

'

'

'

'

'

'

'

'

$4.05

$1.50

'

'

$2.25

$4.04

$4.05

$1.50

$4.05

$4.05

$6

$12.50

$6

$6

$17

'

'

$62.50

$251

'

$4

$3.50

$6

'

$2.25

$251

$149.71

'

$4.05

$150

$5.95

$4.05

$3.50

Maximum exercise price per share protected from anti-dilution

'

'

'

'

'

'

'

'

'

'

$1.50

'

'

'

'

$3.50

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of warrants whose exercise price is reduced

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

747,298

Number of warrants issued

'

'

'

'

'

'

'

'

'

'

747,298

'

'

'

'

'

'

'

781,887

60,000

112,117

'

'

'

172,117

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of additional shares of common stock called by each warrant

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1

'

'

'

'

'

'

'

'

'

'

Number of additional Series A Warrants called by each warrant (in shares)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1

'

'

'

'

'

'

'

'

'

'

Face value

'

'

'

'

'

'

'

'

$125,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Expiration term

'

'

'

'

'

'

'

'

'

'5 years

'5 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of common stock that can be purchased against warrants (in shares)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100,000

'

'

'

'

'

'

'

'

'

Fair value assumptions

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Remaining Term

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'29 days

'4 years 10 months 2 days

'

'

'7 days

'5 years 4 months 24 days

'

'

'

Volatility, Minimum (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

79.32%

'

'

'

71.07%

'

'

'

'

'

Volatility, Maximum (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

157.03%

'

'

'

164.38%

'

'

'

'

'

Risk-Free Rate, minimum (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.13%

'

'

'

0.13%

'

'

'

'

'

Risk-Free Rate, maximum (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.66%

'

'

'

1.89%

'

'

'

'

'

Discounted payoff amount

'

'

'

'

'

'

25,000,000

25,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Expiration term upon payment of discounted payoff amount

'

'

'

'

'

'5 years

'

'

'

'

'5 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of shares that can be purchased against warrants upon payment of discounted payoff amount

'

'

'

'

'

750,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share price (in dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$3

'

'

'

'

'

'

'

'

'

'

'

'

Number of additional warrants issued to investor on reduction of strike price

'

'

'

'

'

'

'

'

'

'

5,362,190

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100

280,841

'

'

'

'

'

'

'

'

'

'

1,787,171

Exercise price (in dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$3

'

'

'

'

'

'

'

'

'

'

'

'

Gain recorded for the change in fair value of the warrants

$5,918,000

($324,000)

$867,000

($5,943,000)

($5,099,000)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stockholders_Equity_Details

Stockholders' Equity (Details) (USD $)

0 Months Ended

3 Months Ended

9 Months Ended

41 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

Jan. 05, 2014

Oct. 04, 2013

Sep. 04, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Mar. 31, 2013

Feb. 14, 2014

Dec. 31, 2013

Aug. 30, 2013

Aug. 14, 2013

Dec. 31, 2013

Dec. 31, 2013

Aug. 30, 2013

Aug. 30, 2013

Dec. 31, 2013

Subsequent Events

Very Hungry Parties

Redeemable preferred stock

Redeemable preferred stock

Redeemable preferred stock

Redeemable preferred stock

Redeemable preferred stock

Redeemable preferred stock

Redeemable preferred stock

Very Hungry Parties

Very Hungry Parties

Very Hungry Parties

Very Hungry Parties

Public Offering

Public Offering

Very Hungry Notes

Series A Warrants

Series B Warrants

Stockholders' Equity

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Reverse stock split

'

'

0.02

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock issued and outstanding on completion of reverse stock split

'

'

2,299,388

'

'

'

'

'

'

'

'

'

'

'

'

'

Common Stock

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Common stock, shares authorized

'

'

'

300,000,000

300,000,000

300,000,000

300,000,000

'

'

'

'

'

'

'

'

'

Common stock, par value (in dollars per share)

'

'

'

$0.00

$0.00

$0.00

$0.00

'

'

'

'

'

'

'

'

'

Common stock issued (in shares)

'

'

114,969,415

4,191,658

4,191,658

4,191,658

1,451,914

'

1,090,198

'

'

'

'

'

'

'

Common stock outstanding (in shares)

'

'

114,969,415

4,191,658

4,191,658

4,191,658

1,451,914

4,940,456

'

'

'

'

'

'

'

'

Stock issued for services (in shares)

'

748,798

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of common stock issued (in shares)

1,500

'

'

'

'

'

'

'

'

916,668

'

'

'

'

'

'

Preferred Stock

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Preferred stock, shares authorized

'

'

'

'

'

'

'

'

'

'

'

100,000,000

'

'

'

'

Preferred stock, par value (in dollars per share)

'

'

'

'

'

'

'

'

'

'

'

$0.00

'

'

'

'

Number of shares of redeemable preferred stock issued

'

'

'

'

'

'

'

'

'

'

'

15,000,000

'

'

'

'

Number of shares of redeemable preferred stock outstanding

'

'

'

15,000,000

15,000,000

15,000,000

'

'

'

'

'

15,000,000

'

'

'

'

Liquidation value

'

'

'

$15,000,000

$15,000,000

$15,000,000

'

'

'

'

'

$15,000,000

$5,500,000

'

'

'

Number of mandatorily convertible preferred stock shares issued in exchange for the redemption of convertible notes

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5,500,000

Amount of debt exchanged

'

'

'

'

'

9,493,000

'

'

'

'

'

'

'

'

'

5,500,000

Redeemable non-convertible and non-voting and preferred stock interest percentage

'

'

'

'

'

'

'

'

'

'

'

8.00%

'

'

'

'

Market capitalization cap percentage for redemption

'

'

'

'

'

'

'

'

'

'

10.00%

10.00%

'

'

'

'

Warrants issued (in shares)

'

'

'

'

'

'

'

'

'

'

'

'

'

916,668

916,668

'

Loss on extinguishment of a debt

'

'

'

11,423,000

49,000

2,049,000

'

'

'

'

'

2,100,000

'

'

'

'

Beneficial conversion recorded and amortized through additional paid-in capital

'

'

'

'

'

'

'

'

'

'

'

$700,000

'

'

'

'

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013
	t
Derivative Financial Instruments	'
Derivative liability	$12,481
Warrant	'
Derivative Financial Instruments	'
Derivative liability	12,500
Embedded derivative	'
Derivative Financial Instruments	'
Derivative liability	$700
Minimum quantity of potash that has first been shipped for delivery from Holbrook Project (in tonnes)	50,000
Period for redemption by holder of redeemable preferred stock following the month in which a specified quantity of potash has first been shipped for delivery at Holbrook Project	'3 years

Loss_per_Share_Details

Loss per Share (Details) (USD $)	3 Months Ended				9 Months Ended				41 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2013
Numerator	'		'		'		'		'
Net loss attributable to Prospect Global Resources Inc.	($20,585)		($34,085)		($37,930)		($62,764)		($198,184)
Undeclared Preferred Stock Dividends	-467		'		-467		'		-467
Net loss applicable to common shares for basic and diluted earnings per share	($21,052)		($34,085)		($38,397)		($62,764)		($198,651)
Denominator	'		'		'		'		'
Weighted average number of common shares outstanding - basic	4,203,000		1,286,000		2,820,000		1,058,000		1,393,000
Weighted average number of common shares outstanding - fully diluted	4,203,000		1,286,000		2,820,000		1,058,000		1,393,000
Basic and fully diluted loss per share of common stock (in dollars per share)	($5.01)	[1]	($26.50)	[1]	($13.62)	[1]	($59.32)	[1]	($142.61)	[1]
Antidilutive potentially dilutive warrants and options which were not included in the computation of Loss Per Share (in shares)	'		'		8,000,000		'		'
[1]	All common share amounts and computations using such amounts have been retroactively adjusted to reflect the September 4, 2013 1-for-50 reverse stock split.

Commitments_and_Contingencies_1

Commitments and Contingencies (Details) (USD $)

0 Months Ended

9 Months Ended

12 Months Ended

0 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

1 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

0 Months Ended

2 Months Ended

9 Months Ended

0 Months Ended

0 Months Ended

1 Months Ended

0 Months Ended

9 Months Ended

Jan. 05, 2014

Dec. 31, 2013

Mar. 31, 2013

Feb. 14, 2014

Dec. 31, 2013

Dec. 31, 2013

Jun. 14, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Feb. 12, 2014

Feb. 11, 2014

Jun. 26, 2013

30-May-12

Dec. 31, 2013

Dec. 31, 2013

Feb. 12, 2014

Dec. 31, 2013

Mar. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Nov. 30, 2012

Dec. 13, 2013

Aug. 01, 2012

Dec. 31, 2013

Feb. 12, 2014

Dec. 31, 2013

Dec. 10, 2013

Dec. 31, 2013

Jan. 10, 2014

Dec. 31, 2013

Mar. 10, 2014

Dec. 31, 2013

Jan. 10, 2014

Dec. 31, 2013

Aug. 14, 2013

Aug. 01, 2012

Sep. 30, 2013

Aug. 01, 2012

Dec. 31, 2013

Dec. 31, 2013

Subsequent Events

Debt

Land and lease payment

Public Offering

Series B Warrants

Warrants having full ratchet anti-dilution protection rights

Warrants having full ratchet anti-dilution protection rights to $3.50 per share with strike price $4.05

Warrants having full ratchet anti-dilution protection rights to $3.50 per share with strike price $4.05

Warrants having full ratchet anti-dilution protection rights to $3.50 per share with strike price $4.05

Warrants having full ratchet anti-dilution protection rights with exercise price of $6.00 to $17.00

Warrants having full ratchet anti-dilution protection rights with exercise price of $6.00 to $17.00

Warrants having full ratchet anti-dilution protection rights with exercise price of $6.00 to $17.00

Series A Warrants

Series A Warrants

Apollo Notes

Apollo Notes

Forecast

Example

Stockholder claims

Karlsson Group

Karlsson Group

Karlsson Group

Karlsson Group

Karlsson Group

Karlsson Group

Karlsson Group

Karlsson Group

Karlsson Group

Affiliates of Apollo Global Management, LLC

Affiliates of Apollo Global Management, LLC

Affiliates of Apollo Global Management, LLC

Affiliates of Apollo Global Management, LLC

Buffalo

Buffalo

Buffalo

Grandhaven

AWP

AWP

item

Subsequent Events

Subsequent Events

warrant

warrant

Subsequent Events

Karlsson Note and Apollo Notes

Warrants having full ratchet anti-dilution protection rights

Subsequent Events

Warrants having full ratchet anti-dilution protection rights with exercise price of $6.00 to $17.00

Karlsson Note

Karlsson Note

Karlsson Note

Karlsson Note

Apollo Notes

Apollo Notes

Apollo Notes

Forecast

Warrants having full ratchet anti-dilution protection rights to $3.50 per share with strike price $4.05

Karlsson Group

Karlsson Group

warrant

warrant

Subsequent Events

Forecast

Subsequent Events

Apollo Notes

warrant

Forecast

Commitments and Contingencies

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Discounted payoff amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$25,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt amount due

'

145,885,000

128,258,000

25,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

6,654,000

6,750,000

159,100,000

'

'

'

'

'

'

'

'

'

'

151,700,000

'

7,300,000

'

7,400,000

'

'

'

'

'

'

Percentage of net proceeds of note to be deposited into escrow

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

50.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

Proceeds from issuance of capital

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

18,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Amount to be deposited into escrow

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

9,400,000

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of gross proceeds agreed to be paid to party to agreement

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

Expiration term upon payment of discounted payoff amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'5 years

'

'

'

'

'

'

'

'5 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of shares that can be purchased against warrants upon payment of discounted payoff amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

750,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Legal fees and expenses reimbursed

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

50,000

'

'

1,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Period of remaining balance of legal fee due and payable, following payment of discounted payoff amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'2 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accrued legal fee

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

30,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Royalty as a percentage of gross sales

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2.00%

'

'

'

'

'

'

'

'

'

'

'

'

1.00%

'

1.00%

10.00%

10.00%

Percentage of ownership interest held by non-controlling owners

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

50.00%

'

Minimum amount of royalty granted as a percentage of gross sales

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

200,000,000

Principal payments payable expressed as a percentage of gross proceeds

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10.00%

'

'

'

'

10.00%

'

'

'

'

'

'

'

'

Amount of next capital raised to be used for payment of debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,000,000

'

'

'

1,000,000

'

'

'

'

'

'

'

'

'

Percentage of gross revenue interest

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2.00%

'

'

'

'

'

'

'

'

'

'

1.00%

'

'

'

'

'

Major Contractual Obligations

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Less than 1-year

'

'

'

'

25,000,000

336,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1-2 years

'

'

'

'

'

609,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Thereafter

'

'

'

'

'

582,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total

'

'

'

'

25,000,000

1,527,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Amount Owed

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

7,300,000

'

'

'

'

'

'

'

Consideration value as a percentage of aggregate amount owed, maximum

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

17.00%

'

'

'

'

'

'

'

'

'

'

'

Aggregate value of common stock to be issued for repayment of debt, as a percentage of amount owed

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

17.00%

'

'

'

'

'

'

'

Commitments to issue additional shares of common stock under existing service contracts

'

9,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Commitments to issue additional shares of common stock under existing service contracts due in quarterly increments

'

9,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock issued in public offerings (in shares)

1,500

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of warrants issued

'

'

'

'

'

'

'

'

'

'

'

'

60,000

112,117

'

'

747,298

'

'

'

'

'

'

'

'

'

172,117

'

'

'

'

'

'

'

'

'

'

781,887

'

'

'

Maximum exercise price per share protected from anti-dilution

'

'

'

'

'

'

'

'

'

$3.50

'

'

'

'

'

'

$1.50

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Exercise price (in dollars per share)

'

'

'

'

'

'

'

$6

'

$4.05

$1.50

$4.05

$6

$12.50

$6

$4.05

$1.50

'

'

'

$4

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$4.05

'

'

'

Number of additional shares of common stock called by each warrant

'

'

'

'

'

'

'

1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of additional Series A warrants called by each warrant (in shares)

'

'

'

'

'

'

'

1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Warrants outstanding (in shares)

'

'

'

'

'

'

'

916,668

3,936,677

1,787,171

'

'

'

'

307,424

3,936,677

9,298,867

'

'

'

300

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Expiration term

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'5 years

'5 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share price (in dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Strike price (in dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of additional warrants issued to investor on reduction of strike price

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5,362,190

'

'

'

100

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Exercise price (in dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Value of shares purchased by shareholder in public offering

'

$805,000

$66,290,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$10,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of underwriters

'

'

'

'

'

'

4

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair_Value_Measurement_Details

Fair Value Measurement (Details) (USD $)	Dec. 31, 2013	Mar. 31, 2013
In Thousands, unless otherwise specified
Liabilities:	'	'
Buffalo embedded derivative	$650	'
Derivative warrant liability	12,481	'
Recurring | Level 2	'	'
Liabilities:	'	'
Tax compensation	19,152	6,226
Total liabilities	19,152	6,226
Recurring | Level 3	'	'
Liabilities:	'	'
Buffalo embedded derivative	650	'
Derivative warrant liability	12,481	'
Total liabilities	13,131	'
Recurring | Total	'	'
Liabilities:	'	'
Tax compensation	19,152	6,226
Buffalo embedded derivative	650	'
Derivative warrant liability	12,481	'
Total liabilities	$32,283	$6,226

Fair_Value_Measurement_Details1

Fair Value Measurement (Details 2) (Level 3, Non-recurring, USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Carrying Value	'
Fair Value Measurement	'
Debt	$116,536
Fair Value	'
Fair Value Measurement	'
Debt	$117,823

Fair_Value_Measurement_Details2

Fair Value Measurement (Details 3) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013
Very Hungry	'
Changes in the fair value of the Level 3 financial liabilities	'
Extinguishment	($2,900)
New instrument - initial valuation	2,900
Buffalo	'
Changes in the fair value of the Level 3 financial liabilities	'
New instrument - initial valuation	650
Balance at the end of the period	650
Derivative Warrant Liability	'
Changes in the fair value of the Level 3 financial liabilities	'
Mark-to-market adjustment	12,481
Balance at the end of the period	$12,481

Subsequent_Events_Details

Subsequent Events (Details) (USD $)

0 Months Ended

9 Months Ended

0 Months Ended

0 Months Ended

Apr. 25, 2013

Dec. 31, 2013

Dec. 31, 2013

Sep. 30, 2013

Dec. 31, 2013

Feb. 12, 2014

Feb. 12, 2014

Feb. 11, 2014

Jan. 10, 2014

Feb. 12, 2014

Jan. 10, 2014

Apr. 25, 2013

Dec. 31, 2013

Dec. 31, 2013

Series A Warrants

Warrants having full ratchet anti-dilution protection rights to $3.50 per share with strike price $4.05

Buffalo

Buffalo

Subsequent Events

Subsequent Events

Subsequent Events

Subsequent Events

Subsequent Events

Subsequent Events

Minimum

Minimum

Minimum

Warrants having full ratchet anti-dilution protection rights to $3.50 per share with strike price $4.05

Quincy Prelude LLC

Series A Warrants

Warrants having full ratchet anti-dilution protection rights to $3.50 per share with strike price $4.05

Warrants having full ratchet anti-dilution protection rights to $3.50 per share with strike price $4.05

Note

Buffalo

Affiliates of Apollo Global Management, LLC

Warrant

Investor Warrants

Warrants expiring in 2018

item

Quincy Prelude LLC

Apollo Notes

Warrants expiring in 2018

Subsequent Events

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Market value required for continued inclusion on the Nasdaq Capital Market based on Listing Rule

$35,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of consecutive business days for which the market value of listed securities has fallen below the $35 million minimum requirement for continued listing

'

'

'

'

'

'

'

'

'

'

'

'30 days

'

'

Number of calendar days to regain compliance rules related to minimum market value

'180 days

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of consecutive business days to regain compliance rules during specified calendar days related to minimum market value

'

'

'

'

'

'

'

'

'

'

'

'10 days

'

'

Number of debt instruments restructured

'

'

'

'

'

'

'

'

2

'

'

'

'

'

Aggregate amount of restructured debt

'

'

'

'

'

'

'

'

'

'

7,300,000

'

'

'

Aggregate value of common stock to be issued for repayment of debt, as a percentage of amount owed

'

'

'

'

'

'

'

'

'

'

17.00%

'

'

'

Exercise price (in dollars per share)

'

$4.05

$4.05

$4.05

$4.05

$1.50

$1.50

$4.05

'

$3.50

'

'

$2.25

$4.05

Number of warrants whose exercise price is reduced

'

'

'

'

'

'

'

'

'

747,298

'

'

'

'

Gross proceeds from warrants exercised

'

'

'

'

'

1,120,947

'

'

'

'

'

'

'

'

Net proceeds from warrants exercised

'

'

'

'

'

$995,947

'

'

'

'

'

'

'

'

Expiration term

'

'5 years

'

'

'

'5 years

'

'

'

'

'

'

'

'

Maximum exercise price per share protected from anti-dilution

'

'

$3.50

'

'

$1.50

'

'

'

'

'

'

'

'

Number of additional warrants issued to investor on reduction of strike price

'

'

'

'

'

5,362,190

'

'

'

1,787,171

'

'

'

'