FutureFuel (FF) 10-Q 9 Aug 18 2018 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Aug. 09, 2018
Document Information [Line Items]
Entity Registrant Name	FUTUREFUEL CORP.
Entity Central Index Key	1,337,298
Trading Symbol	ff
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Common Stock, Shares Outstanding (in shares)		43,742,677
Document Type	10-Q
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Amendment Flag	false

Consolidated Balance Sheets (Cu

Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets
Cash and cash equivalents	$ 199,921	$ 114,627
Accounts receivable, net of allowances for bad debt of $0 and $0, at June 30, 2018 and December 31, 2017, respectively	22,390	21,973
Accounts receivable – related parties	176	165
Inventory	47,521	43,754
Income tax receivable	3,481	6,937
Prepaid expenses	954	1,660
Prepaid expenses – related parties	12	12
Marketable securities	91,564	120,699
Deferred financing costs	144	144
Other current assets	789	387
Total current assets	366,952	310,358
Property, plant and equipment, net	105,098	109,735
Intangible assets	1,408	1,408
Deferred financing costs	108	180
Other assets	3,845	3,882
Total noncurrent assets	110,459	115,205
Total Assets	477,411	425,563
Liabilities and Stockholders’ Equity
Accounts payable	34,712	18,396
Accounts payable – related parties	781	1,183
Deferred revenue – short-term	5,692	2,736
Dividends payable	5,250	10,498
Accrued expenses and other current liabilities	7,052	2,468
Total current liabilities	53,487	35,281
Deferred revenue – long-term	17,142	16,522
Other noncurrent liabilities	1,129	1,115
Noncurrent deferred income tax liability	17,160	21,049
Total noncurrent liabilities	35,431	38,686
Total liabilities	88,918	73,967
Commitments and contingencies:
Preferred stock, $0.0001 par value, 5,000,000 shares authorized, none issued and outstanding
Common stock, $0.0001 par value, 75,000,000 shares authorized, 43,742,677 and 43,741,670, issued and outstanding as of June 30, 2018 and December 31, 2017, respectively	4	4
Accumulated other comprehensive income	145	8,433
Additional paid in capital	282,178	281,964
Retained earnings	106,166	61,195
Total stockholders’ equity	388,493	351,596
Total Liabilities and Stockholders’ Equity	$ 477,411	$ 425,563

Consolidated Balance Sheets (C3

Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Allowance for bad debt	$ 0	$ 0
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	75,000,000	75,000,000
Common stock, shares issued (in shares)	43,742,677	43,741,670
Common stock, shares outstanding (in shares)	43,742,677	43,741,670

Consolidated Statements of Oper

Consolidated Statements of Operations and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017		Jun. 30, 2018	Jun. 30, 2017
Revenue	$ 88,336	$ 68,048	[1]	$ 144,083	$ 122,159	[1]
Cost of goods sold	73,218			85,357
Gross profit	8,271	1,798		45,778	7,928
Selling, general, and administrative expenses
Compensation expense	846	1,030		2,121	2,294
Other expense	596	505		1,006	1,085
Related party expense	205	44		278	100
Research and development expenses	784	845		1,966	1,600
Total expenses	2,431	2,424		5,371	5,079
Income/(loss) from operations	5,840	(626)		40,407	2,849
Interest and dividend income	2,153	1,991		4,145	3,714
Interest expense	(43)	(43)		(86)	(86)
Gain/(loss) on marketable securities	281	(438)		(4,088)	(569)
Other expense	(177)	(2)		(177)	(33)
Total other income/(expense)	2,214	1,508		(206)	3,026
Income before income taxes	8,054	882		40,201	5,875
Provision/(benefit) for income taxes	2,003	48		(1,676)	1,645
Net income	$ 6,051	$ 834		$ 41,877	$ 4,230
Earnings per common share
Earnings per common share, basic (in dollars per share)	$ 0.14	$ 0.02		$ 0.96	$ 0.10
Earnings per common share, diluted (in dollars per share)	$ 0.14	$ 0.02		$ 0.96	$ 0.10
Weighted average shares outstanding
Weighted average shares outstanding, basic (in shares)	43,716,726	43,665,171		43,716,698	43,641,038
Weighted average shares outstanding, diluted (in shares)	43,720,942	43,675,688		43,721,568	43,649,400
Comprehensive Income
Net income	$ 6,051	$ 834		$ 41,877	$ 4,230
Other comprehensive income/(loss) from unrealized net gains/(losses) on available-for-sale securities	55	3,210		(19)	6,096
Income tax effect	(12)	(1,126)		4	(2,137)
Total unrealized gain/(loss), net of tax	43	2,084		(15)	3,959
Comprehensive income	6,094	2,918		41,862	8,189
Non-related Parties [Member]
Revenue	87,653	67,972		142,596	121,620
Cost of goods sold	73,218	60,227		85,357	104,381
Non-related Parties [Member] | Shipping and Handling [Member]
Cost of goods sold	1,498	769		2,817	1,658
Related Parties [Member]
Revenue	683	76		1,487	539
Cost of goods sold	5,302	5,217		10,031	8,115
Related Parties [Member] | Shipping and Handling [Member]
Cost of goods sold	$ 47	$ 37		$ 100	$ 77
[1]	Prior periods have not been adjusted under the modified retrospective method for Topic 606.

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows provided by operating activities
Net income	$ 41,877	$ 4,230
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	5,512	5,808
Amortization of deferred financing costs	72	72
Benefit for deferred income taxes	(3,885)	(1,763)
Change in fair value of equity securities	6,412		[1]
Change in fair value of derivative instruments	(1,559)	318
Other than temporary impairment of marketable securities		177
Impairment of fixed assets	171	9
Gain on the sale of investments	(2,324)	392
Stock based compensation	214	750
Losses on disposals of fixed assets	37	77
Noncash interest expense	14	13
Changes in operating assets and liabilities:
Accounts receivable	(417)	5,613
Accounts receivable – related parties	(11)	(2,573)
Inventory	(3,767)	15,204
Income tax receivable	3,456	4,262
Prepaid expenses	706	626
Prepaid expenses – related parties		(7)
Accrued interest on marketable securities	(82)	(11)
Other assets	39	19
Accounts payable	16,316	(5,150)
Accounts payable - related parties	(402)	525
Accrued expenses and other current liabilities	4,584	1,370
Accrued expenses and other current liabilities - related parties		(142)
Deferred revenue	(1,603)	(1,972)
Other noncurrent liabilities		112
Net cash provided by operating activities	65,360	27,959
Cash flows from investing activities
Collateralization of derivative instruments	1,237	(34)
Purchase of marketable securities	(10,690)	(19,322)
Proceeds from the sale of marketable securities	35,718	10,268
Proceeds from the sale of fixed assets	20
Capital expenditures	(1,103)	(1,686)
Net cash provided by/(used in) investing activities	25,182	(10,774)
Cash flows from financing activities
Minimum tax withholding on stock options exercised and awards vested		(8)
Excess tax benefits associated with stock options and awards		(1)
Payment of dividends	(5,248)	(105,438)
Net cash used in financing activities	(5,248)	(105,447)
Net change in cash and cash equivalents	85,294	(88,262)
Cash and cash equivalents at beginning of period	114,627	199,272
Cash and cash equivalents at end of period	199,921	111,010
Cash paid for interest
Cash paid for income taxes	$ 759	$ 55
[1]	Prior periods have not been adjusted under the modified retrospective method for Topic 321.

Note 1 - Nature of Operations a

Note 1 - Nature of Operations and Basis of Presentation	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Nature of Operations [Text Block]	1 ) NATURE OF OPERATIONS AND BASIS OF PRESENTATION Organization FutureFuel Corp. (“FutureFuel”), through its wholly-owned subsidiary, FutureFuel Chemical Company (“FutureFuel Chemical”), owns and operates a chemical production facility located on approximately 2,200 six two The chemicals segment manufactures a diversified portfolio of chemical products that are sold to third The biofuels business segment primarily produces and sells biodiesel. FutureFuel Chemical also sells petrodiesel in blends with the company’s biodiesel and, from time to time, with no Basis of Presentation The accompanying unaudited consolidated financial statements have been prepared by FutureFuel in accordance and consistent with the accounting policies stated in FutureFuel’s 2017 2017 In the opinion of FutureFuel, all normal recurring adjustments necessary for a fair presentation have been included in the unaudited consolidated financial statements. The unaudited consolidated financial statements have been prepared in compliance with the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) accounting principles generally accepted in the United States (“GAAP”) for interim financial information and with instructions to Form 10 not

Note 2 - Reinstatement of the B

Note 2 - Reinstatement of the Biodiesel Blenders' Tax Credit and Small Agri-biodiesel Producer Tax Credit	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Other Income and Other Expense Disclosure [Text Block]	2 ) R EINSTATEMENT OF THE BIODIESEL BLENDERS’ TAX CREDIT AND SMALL AGRI-BIODIESEL PRODUCER TAX CREDIT The biodiesel Blenders’ Tax Credit (“BTC”) provides a $1.00 0.1% December 31, 2016 not 2017 2018 February 9, 2018. 2018, $28,869 $13,559 $42,428 twelve December 31, 2017. As part of the law from which the BTC was reinstated, small agri-biodiesel producers with production capacity not 60 $0.10 first 15 three six June 30, 2018. Neither the BTC nor the Small Agri-biodiesel Producer Tax Credit have been passed into law for 2018.

Note 3 - Inventory

Note 3 - Inventory	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Inventory Disclosure [Text Block]	3 ) INVENTORY The carrying values of inventory were as follows as of: June 30, 2018 December 31, 2017 At average cost (approximates current cost) Finished goods $ 15,421 $ 22,998 Work in process 1,549 1,735 Raw materials and supplies 40,671 27,143 57,641 51,876 LIFO reserve (10,120 ) (8,122 ) Total inventory $ 47,521 $ 43,754 Lower of Cost or Market ("LCM") adjustments are recorded as a decrease in inventory values and an increase in cost of goods sold. The inventory is relieved at the LCM adjusted cost basis when sold. There was no three six June 30, 2018. three six June 30, 2017, $957 .

Note 4 - Derivative Instruments

Note 4 - Derivative Instruments	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Derivative Instruments and Hedging Activities Disclosure [Text Block]	4 ) DERIVATIVE INSTRUMENTS FutureFuel is exposed to certain risks relating to its ongoing business operations. Commodity price risk is the primary risk managed by using derivative instruments. Regulated fixed price futures and option contracts are utilized to manage the price risk associated with future purchases of feedstock used in FutureFuel’s biodiesel production along with physical feedstock and finished product inventories attributed to this process. FutureFuel recognizes all derivative instruments as either assets or liabilities at fair value in its consolidated balance sheets. FutureFuel’s derivative instruments do not 815 20 25, None The fair value of FutureFuel’s derivative instruments is determined based on the closing prices of the derivative instruments on relevant commodity exchanges at the end of an accounting period. Realized gains and losses on derivative instruments and changes in fair value of the derivative instruments are recorded in the statements of operations as a component of cost of goods sold, and amounted to a loss of $3,109 $524 three June 30, 2018 2017, $3,271 $1,803 six June 30, 2018 2017, The volumes and carrying values of FutureFuel’s derivative instruments were as follows at: June 30, 2018 December 31, 2017 C ontract q uantity Short Fair Value C ontract q uantity Short Fair Value Regulated options, included in other current assets 100 $ (940 ) 200 $ (2,428 ) Regulated fixed price future commitments, included in other current assets 171 $ 71 - $ - The margin account maintained with a broker to collateralize these derivative instruments carried an account balance of $1,423 $2,660 June 30, 2018 December 31, 2017,

Note 5 - Marketable Securities

Note 5 - Marketable Securities	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Cash, Cash Equivalents, and Marketable Securities [Text Block]	5 ) MARKETABLE SECURITIES At June 30, 2018 December 31, 2017, December 31, 2017. six June 30, 2018, 321, FutureFuel’s available for sale debt securities were comprised of the following at June 30, 2018 December 31, 2017: June 30, 2018 Adjusted Cost Unrealized Gains Unrealized Losses Fair Value Exchange traded debt $ 1,429 $ 96 $ (9 ) $ 1,516 Trust Preferred 3,147 97 - 3,244 Total debt securities $ 4,576 $ 193 $ (9 ) $ 4,760 December 31, 2017 Adjusted Cost Unrealized Gains Unrealized Losses Fair Value Exchange traded debt $ 1,702 $ 158 $ - $ 1,860 Trust Preferred 3,147 114 - 3,261 Total debt securities $ 4,849 $ 272 $ - $ 5,121 The aggregate fair value of debt securities with unrealized losses totaled $297 June 30, 2018, $14,103 December 31, 2017. June 30, 2018, $168 12 December 31, 2017, $2,903 12 $7 $124,

Note 6 - Accrued Expenses and O

Note 6 - Accrued Expenses and Other Current Liabilities	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block]	6 ) ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES Accrued expenses and other current liabilities, including those associated with related parties, consisted of the following at: June 30, 2018 December 31, 2017 Accrued employee liabilities $ 4,681 $ 976 Accrued property, franchise, motor fuel and other taxes 1,948 1,387 Other 423 105 Total $ 7,052 $ 2,468

Note 7 - Borrowings

Note 7 - Borrowings	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Debt Disclosure [Text Block]	7 ) BORROWINGS On April 16, 2015, $150,000 May 25, 2016, $15,000. five $165,000, $30,000 $15,000 The interest rate floats at the following margins over LIBOR or base rate based upon the leverage ratio from time to time: Consolidated Leverage Ratio Adjusted LIBOR Rate Loans and Letter of Credit Fee Base Rate Loans Commitment Fee < 1.00:1.0 1.25% 0.25% 0.15% ≥ 1.00:1.0 And < 1.50:1.0 1.50% 0.50% 0.20% ≥ 1.50:1.0 And < 2.00:1.0 1.75% 0.75% 0.25% ≥ 2.00:1.0 And < 2.50:1.0 2.00% 1.00% 0.30% ≥ 2.50:1.0 2.25% 1.25% 0.35% The terms of the Credit Facility contain certain covenants and conditions including a maximum consolidated leverage ratio, a minimum consolidated fixed charge coverage ratio, and a minimum liquidity requirement. FutureFuel was in compliance with such covenants as of June 30, 2018. There were no June 30, 2018 December 31, 2017.

Note 8 - Provision (Benefit) fo

Note 8 - Provision (Benefit) for Income Taxes	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Income Tax Disclosure [Text Block]	8 ) PROVISION/(BENEFIT) FOR INCOME TAXES The following table summarizes the provision/(benefit) for income taxes. Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Benefit)/provision for income taxes $ 2,003 $ 48 $ (1,676 ) $ 1,645 Effective tax rate 24.9 % 5.4 % (4.2% ) 28.0 % The effective tax rate for the three June 30, 2018 2017 three 2018. The effective tax rate for the six June 30, 2018 2017 six June 30, 2017 not 2018 December 31, 2017 February 9, 2018. not 2018 three March 31, 2018 six June 30, 2018. Unrecognized tax benefits totaled $0 June 30, 2018 December 31, 2017. FutureFuel records interest and penalties, net, as a component of income tax expense. At June 30, 2018 December 31, 2017, $0

Note 9 - Earnings Per Share

Note 9 - Earnings Per Share	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Earnings Per Share [Text Block]	9 ) EARNINGS PER SHARE The Company computes earnings per share using the two No. 260, Earnings per Share two two no June 30, 2018 2017. Contingently issuable shares associated with outstanding service-based restricted stock units were not three June 30, 2018 2017 not Basic and diluted earnings per common share were computed as follows: For the three months ended June 30, For the six months ended June 30, 2018 2017 2018 2017 Numerator: Net income $ 6,051 $ 834 $ 41,877 $ 4,230 Less: distributed earnings allocated to non-vested stock - - - - Less: undistributed earnings allocated to non-vested restricted stock (3 ) (1 ) (24 ) (10 ) Numerator for basic earnings per share $ 6,048 $ 833 $ 41,853 $ 4,220 Effect of dilutive securities: Add: undistributed earnings allocated to non-vested restricted stock 3 1 24 10 Less: undistributed earnings reallocated to non-vested restricted stock (3 ) (1 ) (24 ) (10 ) Numerator for diluted earnings per share $ 6,048 $ 833 $ 41,853 $ 4,220 Denominator: Weighted average shares outstanding – basic 43,716,726 43,665,171 43,716,698 43,641,038 Effect of dilutive securities: Stock options and other awards 4,216 10,517 4,870 8,362 Weighted average shares outstanding – diluted 43,720,942 43,675,688 43,721,568 43,649,400 Basic earnings per share $ 0.14 $ 0.02 $ 0.96 $ 0.10 Diluted earnings per share $ 0.14 $ 0.02 $ 0.96 $ 0.10 Certain options to purchase FutureFuel’s common stock were not three six June 30, 2018 2017 30,000 30,000 three six June 30, 2018, 0 15,000 three six June 30, 2017,

Note 10 - Segment Information

Note 10 - Segment Information	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	10 ) SEGMENT INFORMATION FutureFuel has two Chemicals FutureFuel’s chemicals segment manufactures diversified chemical products that are sold externally to third two Biofuels FutureFuel’s biofuels business segment primarily manufactures and markets biodiesel. Biodiesel revenues are generated through the sale of biodiesel to customers through FutureFuel’s distribution network at the Batesville Plant, through distribution facilities available at leased oil storage facilities, and through a network of remotely located tanks. Biofuels revenues also include the sale of biodiesel blends with petrodiesel, petrodiesel with no not not may Summary of long-lived assets and revenues by geographic area All of FutureFuel’s long-lived assets are located in the United States. Most of FutureFuel’s sales are transacted with control and title passing at the time of shipment from the Batesville Plant, although some sales are transacted with control and title passing at the delivery point. While many of FutureFuel’s chemicals are utilized to manufacture products that are shipped, further processed, and/or consumed throughout the world, the chemical products, with limited exceptions, generally leave the United States only after ownership has transferred from FutureFuel to the customer. FutureFuel is rarely the exporter of record, never the importer of record into foreign countries, and is not Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 United States $ 87,525 $ 66,918 $ 142,791 $ 120,333 All Foreign Countries 811 1,130 1,292 1,826 Total $ 88,336 $ 68,048 $ 144,083 $ 122,159 Revenues from a single foreign country during the three six June 30, 2018 2017 not 1% Summary of business by segment Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 Revenue Custom chemicals $ 27,072 $ 19,644 $ 50,492 $ 41,596 Performance chemicals 4,455 3,707 10,116 8,112 Chemicals revenue 31,527 23,351 60,608 49,708 Biofuels revenue 56,809 44,697 83,475 72,451 Total Revenue $ 88,336 $ 68,048 $ 144,083 $ 122,159 Segment gross profit Chemicals $ 8,016 $ 5,332 $ 15,572 $ 12,341 Biofuels 255 (3,534 ) 30,206 (4,413 ) Total gross profit 8,271 1,798 45,778 7,928 Corporate expenses (2,431 ) (2,424 ) (5,371 ) (5,079 ) Income before interest and taxes 5,840 (626 ) 40,407 2,849 Interest and other income 2,434 1,991 4,145 3,714 Interest and other expense (220 ) (483 ) (4,351 ) (688 ) (Provision)/benefit for income taxes (2,003 ) (48 ) 1,676 (1,645 ) Net income $ 6,051 $ 834 $ 41,877 $ 4,230 Depreciation is allocated to segment costs of goods sold based on plant usage. The total assets and capital expenditures of FutureFuel have not

Note 11 - Fair Value Measuremen

Note 11 - Fair Value Measurements	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Fair Value Disclosures [Text Block]	1 1 ) FAIR VALUE MEASUREMENTS Fair value is defined as the exit price, or the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants as of the measurement date. Fair value accounting pronouncements also include a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. Observable inputs are inputs market participants would use in valuing the asset or liability developed based on market data obtained from sources independent of FutureFuel. Unobservable inputs are inputs that reflect FutureFuel’s assumptions about the factors market participants would use in valuing the asset or liability developed based upon the best information available in the circumstances. The hierarchy is broken down into three 1 2 not 3 The following tables provide information by level for assets and liabilities that are measured at fair value, on a recurring basis, at June 30, 2018 December 31, 2017. Asset (Liability) Fair Value Measurements Using Fair Value at Inputs Considered as: Description June 30, 2018 Level 1 Level 2 Level 3 Derivative instruments $ (869 ) $ (869 ) $ - $ - Preferred stock, and other equity instruments $ 86,804 $ 86,804 $ - $ - Trust preferred and exchange traded debt instruments $ 4,760 $ 4,760 $ - $ - Asset (Liability) Fair Value Measurements Using Fair Value at Inputs Considered as: Description December 31, 2017 Level 1 Level 2 Level 3 Derivative instruments $ (2,428 ) $ (2,428 ) $ - $ - Preferred stock, and other equity instruments $ 115,578 $ 115,578 $ - $ - Trust preferred and exchange traded debt instruments $ 5,121 $ 5,121 $ - $ -

Note 12 - Reclassifications Fro

Note 12 - Reclassifications From Accumulated Other Comprehensive Income	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Comprehensive Income (Loss) Note [Text Block]	1 2 ) RECLASSIFICATIONS FROM ACCUMULATED OTHER COMPREHENSIVE INCOME: The following tables summarize changes in accumulated other comprehensive income from unrealized gains and losses on available-for-sale securities in the three six June 30, 2018 2017. Changes in Accumulated Other Comprehensive Income From Unrealized Gains and Losses on Available-for-Sale Securities For the three months ended June 30, 2018 and 2017 (net of tax) 2018 2017 Balance at April 1 $ 102 $ 5,415 Other comprehensive income before reclassifications 43 1,799 Amounts reclassified from accumulated other comprehensive income - 285 Net current-period other comprehensive income 43 2,084 Balance at June 30 $ 145 $ 7,499 Changes in Accumulated Other Comprehensive Income From Unrealized Gains and Losses on Available-for-Sale Securities For the six months ended June 30, 2018 and 2017 (net of tax) 2018 2017 Balance at January 1 [1] $ 160 $ 3,540 Other comprehensive income before reclassifications (15 ) 3,589 Amounts reclassified from accumulated other comprehensive income - 370 Net current-period other comprehensive income (15 ) 3,959 Balance at June 30 $ 145 $ 7,499 [1] 2018 $8,273 2016 01. 18 The following tables summarize amounts reclassified from accumulated other comprehensive income in the three six June 30, 2018 2017: Reclassifications from Accumulated Other Comprehensive Income for the three and six months ended June 30, 2018 and 2017 Three months ended June 30, 2018 2017 Affected Line Item in Statement of Operations Unrealized gains/(losses) on available-for-sale debt securities $ - $ (438 ) Gain/(loss) on marketable securities Total before tax - (438 ) Tax (provision)/benefit - 153 Total reclassifications $ - $ (285 ) Six months ended June 30, 2018 2017 Affected Line Item in Statement of Operations Unrealized gains/(losses) on available-for-sale debt securities $ - $ (569 ) Gain/(loss) on marketable securities Total before tax - (569 ) Tax benefit - 199 Total reclassifications $ - $ (370 ) *Effective January 1, 2018, 320 321. not 321. 18

Note 13 - Legal Matters

Note 13 - Legal Matters	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Legal Matters and Contingencies [Text Block]	13 ) LEGAL MATTERS From time to time, FutureFuel and its operations are parties to, or targets of, lawsuits, claims, investigations, regulatory matters, and proceedings, which are being handled and defended in the ordinary course of business. While FutureFuel is unable to predict the outcomes of these matters, it does not

Note 14 - Related Party Transac

Note 14 - Related Party Transactions	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Related Party Transactions Disclosure [Text Block]	14 ) RELATED PARTY TRANSACTIONS FutureFuel enters into transactions with companies affiliated with or controlled by a director and significant shareholder. Revenues, expenses, prepaid amounts, and unpaid amounts related to these transactions are captured in the accompanying consolidated financial statements as related party line items. Related party revenues are the result of sales of biodiesel, petrodiesel, blends, other petroleum products, and other similar or related products to these related parties. Related party cost of goods sold and distribution are the result of sales of biodiesel, petrodiesel, blends, and other petroleum products to these related parties along with the associated expense from the purchase of natural gas, storage and terminalling services, and income tax and consulting services by FutureFuel from these related parties.

Note 15 - Intangible Asset

Note 15 - Intangible Asset	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Goodwill and Intangible Assets Disclosure [Text Block]	15 ) INTANGIBLE ASSET In April 2015, $1,408. no $1,408 June 30, 2018 December 31, 2017. 350 30 35 18 35 20.

Note 16 - Recently Issued Accou

Note 16 - Recently Issued Accounting Statements	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Description of New Accounting Pronouncements Not yet Adopted [Text Block]	16 ) RECENTLY ISSUED ACCOUNTING STATEMENTS The following table provides a brief description of recent Accounting Standard Updates ("ASU") issued by the FASB: Standard Description Effective Date Effect on the Financial Statements or Other Significant Matters In February 2016, 2016 02, The new guidance supersedes the lease guidance under FASB ASC Topic 840, 842, Annual periods beginning after December 15, 2018. The Company is currently evaluating its population of leases, and is continuing to assess all potential impacts of the standard, but currently believes the most significant impact relates to its accounting for logistics equipment. The Company anticipates recognition of additional assets and corresponding liabilities related to leases upon adoption. The Company plans to adopt the standard effective January 1, 2019. In February 2018, 2018 02, The amendments in this Update allow a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act passed by congress on December 22, 2017 Annual periods beginning after December 15, 2018. The Company is currently evaluating the impact of this standard. The Company plans to adopt the standard on or before January 1, 2019. In June 2018, 2018 07, This Update is part of the FASB Simplification Initiative. Under the new standard, Topic 718 no 718 505 50. Annual periods beginning after December 15, 2018. The Company believes the adoption of the standard will have minimal impact on our financial statements. The Company plans to adopt the standard effective January 1, 2019.

Note 17 - Revenue Recognition

Note 17 - Revenue Recognition	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Revenue from Contract with Customer [Text Block]	17 ) R EVENUE RECOGNITION On January 1, 2018, 2014 09 606” 605” A select number of FutureFuel custom chemical contracts within the chemical segment contain a material right as defined by Topic 606 30 606 January 1, 2018, $6,900 $5,178. 606 one 605 606 $3,251 $3,293 $356 January 1, 2018. The majority of our revenue is from short term contracts with revenue recognized when a single performance obligation to transfer product under the terms of a contract with a customer are satisfied. Accordingly, FutureFuel recognizes revenue when control is transferred to the customer, which is when products are considered to meet customer specification and title and risk of loss are transferred. This typically occurs at the time of shipment or delivery, however, for certain contracts, this occurs upon delivery of the material to a FutureFuel storage location, ready for customer pickup and separated from other FutureFuel inventory. Revenue is measured as the amount of consideration FutureFuel expects to receive in exchange for transferring products and is generally based upon a negotiated price. FutureFuel sells its products directly to customers generally under agreements with payment terms of 30 75 3 10 no 606 605. Contract Assets and Liabilities: Contract assets consist of unbilled amounts typically resulting from revenue recognized through bill and hold arrangements. The contract assets are recorded as accounts receivable on the consolidated balance sheet. Contract liabilities consist of advance payments related to material rights. These amounts were historically recorded as deferred revenue which primarily related to upfront capital payments. The contract liabilities are recorded as deferred revenue in the consolidated balance sheets and are reduced as FutureFuel transfers product to the customer under the renewal option approach. These contract assets and liabilities are reported on the consolidated balance sheets on a contract-by-contract basis at the end of each reporting period. The following table reflects the changes in FutureFuel’s contract assets and contract liabilities for the three six June 30, 2018. no 605: Contract assets - short-term (included in accounts receivable) Three months ended June 30, 2018 Beginning balance at March 31, 2018 $ 651 Additions 1,110 Reductions (651 ) Ending balance at June 30, 2018 $ 1,110 Six months ended June 30, 2018 Beginning balance at January 1, 2018 $ 505 Additions 1,761 Reductions (1,156 ) Ending balance at June 30, 2018 $ 1,110 As Reported Under Prior Standard Contract Liabilities Topic 606 Topic 605 Change Current Beginning balance at March 31, 2018 $ 5,650 $ 2,529 $ 3,121 Revenue recognized for the three months ended June 30, 2018 (165 ) (24 ) (141 ) Ending balance at June 30, 2018 5,485 2,505 2,980 Beginning balance at January 1, 2018 5,780 2,529 3,251 Revenue recognized for the six months ended June 30, 2018 (295 ) (24 ) (271 ) Ending balance at June 30, 2018 $ 5,485 $ 2,505 $ 2,980 Long term Beginning balance at March 31, 2018 $ 13,843 $ 11,308 $ 2,535 Additions 458 458 - Revenue recognized for the three months ended June 30, 2018 (1,631 ) (1,173 ) (458 ) Ending balance at June 30, 2018 12,670 10,593 2,077 Beginning balance at January 1, 2018 15,233 11,940 3,293 Additions 458 458 - Revenue recognized for the six months ended June 30, 2018 (3,021 ) (1,805 ) (1,216 ) Ending balance at June 30, 2018 $ 12,670 $ 10,593 $ 2,077 Transaction price allocated to the remaining performance obligations As of June 30, 2018, $18,155 one five 30% 12 70% one 5 We applied the practical expedient in ASC 606 10 50 14 one Disaggregation of revenue – contractual and non-contractual Three months ended June 30, Six months ended June 30, 2018 2017 (a) 2018 2017 (a) Contract revenue from customers with > 1 year arrangements $ 17,908 $ 11,973 $ 33,158 $ 25,927 Contract revenue from customers with < 1 year arrangement 70,373 56,007 124,414 96,122 Revenue from non-contractual arrangements 55 68 110 110 BTC rebate - (13,599 ) Total revenue $ 88,336 $ 68,048 $ 144,083 $ 122,159 Timing of Revenue Three months ended June 30, Six months ended June 30, 2018 2017 (a) 2018 2017 (a) Bill and hold revenue $ 13,373 $ 3,460 $ 20,894 $ 7,958 Non-bill and hold revenue 74,963 64,588 123,189 114,201 Total revenue $ 88,336 $ 68,048 $ 144,083 $ 122,159 (a) Prior periods have not 606. For both long term and short term contracts, FutureFuel has elected to account for shipping and handling as activities to fulfill the promise to transfer the good. As such, shipping and handling fees billed to customers in a sales transaction are recorded in net sales and shipping and handling costs incurred are recorded in cost of goods sold and distribution. FutureFuel has elected to exclude from net sales any taxes which it collects concurrent with revenue-producing activities. These accounting policy elections are consistent with the manner in which FutureFuel historically recorded shipping and handling fees and taxes. The following table summarizes the impacts of Topic 606 three six June 30, 2018. Three months ended June 30, 2018 Balances Prior to Adoption of Topic 606 Adjustments As Reported Revenue $ 86,595 $ 1,058 $ 87,653 Cost of goods sold 72,915 303 73,218 Gross profit 7,516 755 8,271 Income from operations 5,085 755 5,840 Income before income taxes 7,299 755 8,054 (Benefit)/provision for income taxes 1,814 189 2,003 Net income $ 5,485 $ 566 $ 6,051 Basic earnings per share $ 0.13 $ 0.01 $ 0.14 Diluted earnings per share $ 0.13 $ 0.01 $ 0.14 Comprehensive income $ 5,528 $ 566 $ 6,094 Six months ended June 30, 2018 Balances Prior to Adoption of Topic 606 Adjustments As Reported Revenue $ 139,999 $ 2,597 $ 142,596 Cost of goods sold 84,944 413 85,357 Gross profit 43,594 2,184 45,778 Income from operations 38,223 2,184 40,407 Income before income taxes 38,017 2,184 40,201 (Benefit)/provision for income taxes (2,165 ) 489 (1,676 ) Net income $ 40,182 $ 1,695 $ 41,877 Basic earnings per share $ 0.92 $ 0.04 $ 0.96 Diluted earnings per share $ 0.92 $ 0.04 $ 0.96 Comprehensive income $ 40,167 $ 1,695 $ 41,862 The following table summarizes the impacts of Topic 606 606 June 30, 2018. Balances Prior to Adoption of Topic 606 Adjustments As Re ported Accounts receivable $ 21,280 $ 1,110 $ 22,390 Inventory 48,289 (768 ) 47,521 Income tax receivable 3,513 (32 ) 3,481 Total current assets 366,642 310 366,952 Total assets 477,101 310 477,411 Deferred revenue - short term 2,712 2,980 5,692 Total current liabilities 50,507 2,980 53,487 Deferred revenue - long term 15,065 2,077 17,142 Noncurrent deferred income tax liability 18,424 (1,264 ) 17,160 Total noncurrent liabilities 34,618 813 35,431 Total liabilities 85,125 3,793 88,918 Retained earnings 109,649 (3,483 ) 106,166 Total stockholders' equity 391,976 (3,483 ) 388,493 Total liabilities and stockholders' equity $ 477,101 $ 310 $ 477,411 The following table summarizes the impacts of our adoption of Topic 606 six June 30, 2018: Balances Prior to Adoption of As Reported Topic 606 Adjustments or Restated Change in net income $ 40,182 $ 1,695 $ 41,877 Benefit for deferred income taxes (2,621 ) (1,264 ) (3,885 ) Changes in operating assets and liabilities: Accounts receivables 693 (1,110 ) (417 ) Inventory (4,528 ) 768 (3,760 ) Income tax receivable 3,424 32 3,456 Deferred revenue (1,482 ) (121 ) (1,603 ) Net cash provided by operating activities $ 65,360 $ - $ 65,360

Note 18 - Change in Accounting

Note 18 - Change in Accounting Principle and Error Corrections	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Accounting Changes and Error Corrections [Text Block]	1 8 ) CHANGE IN ACCOUNTING PRINCIPLE AND ERROR CORRECTIONS In January 2016, 2016 01, 825 10 December 15, 2017, The new accounting standard related to the recognition and measurement of financial assets and liabilities makes the following changes to prior guidance and requires: ● certain equity investments to be measured at fair value with changes in fair value now recognized in net income. However, equity investments that do not may impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or similar investment of the same issuer; ● a qualitative assessment of equity investments without readily determinable fair values to identify impairment; and ● separate presentation of financial assets and financial liabilities by measurement category and form of financial asset on the balance sheet or in the accompanying notes to the financial statements. We adopted the new accounting standard utilizing the modified retrospective method, and, therefore, no $13,139 $8,273 Three months ended June 30, Six months ended June 30, 2018 2017* 2018 2017* Net gains/(losses) recognized on equity securities $ 281 $ (438 ) $ (4,088 ) $ (569 ) Less: net gains/(losses) recognized during the period on equity securities sold during the period 663 (438 ) 2,324 (569 ) Unrealized gains/(losses) during the reporting period on equity securities held at the reporting date $ (382 ) $ - $ (6,412 ) $ - *Prior periods have not 321. For the three March 31, 2018, six first 2018, $5,744 $4,528, March 31, 2018 Adjustment for Adoption Balance sheet impact to previously reported period As Reported of Topic 321 As Recast Liabilities and stockholders' equity Additional other comprehensive income $ 3,847 $ (3,745 ) $ 102 Retained earnings 96,371 3,745 100,116 Income statement impact to previously reported period Gain/(loss) on marketable securities $ 1,375 $ (5,744 ) $ (4,369 ) Income before income taxes 37,891 (5,744 ) 32,147 (Benefit)/provision for income taxes (2,463 ) (1,216 ) (3,679 ) Net income 40,354 (4,528 ) 35,826 Earnings per common share, basic and diluted: 0.92 (0.10 ) 0.82 Other comprehensive income from unrealized net gain on available for sale securities (5,818 ) 5,744 (74 ) Income tax effect 1,232 (1,216 ) 16 Total unrealized (loss)/gain, net of tax (4,586 ) 4,528 (58 ) Cash flow impact provided by operating activities Net income $ 40,354 $ (4,528 ) $ 35,826 Benefit for deferred income taxes (2,388 ) (1,216 ) (3,604 ) Change in fair value of equity securities - 6,030 6,030 Other than temporary impairment of marketable securities 286 (286 ) - With adoption of the Topic 321, Three months ended March 31, 2018 2017 Net losses recognized on equity securities $ (4,369 ) $ (131 ) Less: net gains recognized during the period on equity securities sold during the period 1,661 (131 ) Unrealized losses during the reporting period on equity securities held at the reporting date $ (6,030 ) $ -

Significant Accounting Policies

Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	Basis of Presentation The accompanying unaudited consolidated financial statements have been prepared by FutureFuel in accordance and consistent with the accounting policies stated in FutureFuel’s 2017 2017 In the opinion of FutureFuel, all normal recurring adjustments necessary for a fair presentation have been included in the unaudited consolidated financial statements. The unaudited consolidated financial statements have been prepared in compliance with the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) accounting principles generally accepted in the United States (“GAAP”) for interim financial information and with instructions to Form 10 not

Note 3 - Inventory (Tables)

Note 3 - Inventory (Tables)	6 Months Ended
	Jun. 30, 2018
Notes Tables
Schedule of Inventory, Current [Table Text Block]	June 30, 2018 December 31, 2017 At average cost (approximates current cost) Finished goods $ 15,421 $ 22,998 Work in process 1,549 1,735 Raw materials and supplies 40,671 27,143 57,641 51,876 LIFO reserve (10,120 ) (8,122 ) Total inventory $ 47,521 $ 43,754

Note 4 - Derivative Instrumen26

Note 4 - Derivative Instruments (Tables)	6 Months Ended
	Jun. 30, 2018
Notes Tables
Schedule of Derivative Instruments [Table Text Block]	June 30, 2018 December 31, 2017 C ontract q uantity Short Fair Value C ontract q uantity Short Fair Value Regulated options, included in other current assets 100 $ (940 ) 200 $ (2,428 ) Regulated fixed price future commitments, included in other current assets 171 $ 71 - $ -

Note 5 - Marketable Securities

Note 5 - Marketable Securities (Tables)	6 Months Ended
	Jun. 30, 2018
Notes Tables
Marketable Securities [Table Text Block]	June 30, 2018 Adjusted Cost Unrealized Gains Unrealized Losses Fair Value Exchange traded debt $ 1,429 $ 96 $ (9 ) $ 1,516 Trust Preferred 3,147 97 - 3,244 Total debt securities $ 4,576 $ 193 $ (9 ) $ 4,760 December 31, 2017 Adjusted Cost Unrealized Gains Unrealized Losses Fair Value Exchange traded debt $ 1,702 $ 158 $ - $ 1,860 Trust Preferred 3,147 114 - 3,261 Total debt securities $ 4,849 $ 272 $ - $ 5,121

Note 6 - Accrued Expenses and28

Note 6 - Accrued Expenses and Other Current Liabilities (Tables)	6 Months Ended
	Jun. 30, 2018
Notes Tables
Schedule of Accrued Liabilities [Table Text Block]	June 30, 2018 December 31, 2017 Accrued employee liabilities $ 4,681 $ 976 Accrued property, franchise, motor fuel and other taxes 1,948 1,387 Other 423 105 Total $ 7,052 $ 2,468

Note 7 - Borrowings (Tables)

Note 7 - Borrowings (Tables)	6 Months Ended
	Jun. 30, 2018
Notes Tables
Schedule of Long-term Debt Instruments [Table Text Block]	Consolidated Leverage Ratio Adjusted LIBOR Rate Loans and Letter of Credit Fee Base Rate Loans Commitment Fee < 1.00:1.0 1.25% 0.25% 0.15% ≥ 1.00:1.0 And < 1.50:1.0 1.50% 0.50% 0.20% ≥ 1.50:1.0 And < 2.00:1.0 1.75% 0.75% 0.25% ≥ 2.00:1.0 And < 2.50:1.0 2.00% 1.00% 0.30% ≥ 2.50:1.0 2.25% 1.25% 0.35%

Note 8 - Provision (Benefit) 30

Note 8 - Provision (Benefit) for Income Taxes (Tables)	6 Months Ended
	Jun. 30, 2018
Notes Tables
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Benefit)/provision for income taxes $ 2,003 $ 48 $ (1,676 ) $ 1,645 Effective tax rate 24.9 % 5.4 % (4.2% ) 28.0 %

Note 9 - Earnings Per Share (Ta

Note 9 - Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2018
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	For the three months ended June 30, For the six months ended June 30, 2018 2017 2018 2017 Numerator: Net income $ 6,051 $ 834 $ 41,877 $ 4,230 Less: distributed earnings allocated to non-vested stock - - - - Less: undistributed earnings allocated to non-vested restricted stock (3 ) (1 ) (24 ) (10 ) Numerator for basic earnings per share $ 6,048 $ 833 $ 41,853 $ 4,220 Effect of dilutive securities: Add: undistributed earnings allocated to non-vested restricted stock 3 1 24 10 Less: undistributed earnings reallocated to non-vested restricted stock (3 ) (1 ) (24 ) (10 ) Numerator for diluted earnings per share $ 6,048 $ 833 $ 41,853 $ 4,220 Denominator: Weighted average shares outstanding – basic 43,716,726 43,665,171 43,716,698 43,641,038 Effect of dilutive securities: Stock options and other awards 4,216 10,517 4,870 8,362 Weighted average shares outstanding – diluted 43,720,942 43,675,688 43,721,568 43,649,400 Basic earnings per share $ 0.14 $ 0.02 $ 0.96 $ 0.10 Diluted earnings per share $ 0.14 $ 0.02 $ 0.96 $ 0.10

Note 10 - Segment Information (

Note 10 - Segment Information (Tables)	6 Months Ended
	Jun. 30, 2018
Notes Tables
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]	Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 United States $ 87,525 $ 66,918 $ 142,791 $ 120,333 All Foreign Countries 811 1,130 1,292 1,826 Total $ 88,336 $ 68,048 $ 144,083 $ 122,159
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 Revenue Custom chemicals $ 27,072 $ 19,644 $ 50,492 $ 41,596 Performance chemicals 4,455 3,707 10,116 8,112 Chemicals revenue 31,527 23,351 60,608 49,708 Biofuels revenue 56,809 44,697 83,475 72,451 Total Revenue $ 88,336 $ 68,048 $ 144,083 $ 122,159 Segment gross profit Chemicals $ 8,016 $ 5,332 $ 15,572 $ 12,341 Biofuels 255 (3,534 ) 30,206 (4,413 ) Total gross profit 8,271 1,798 45,778 7,928 Corporate expenses (2,431 ) (2,424 ) (5,371 ) (5,079 ) Income before interest and taxes 5,840 (626 ) 40,407 2,849 Interest and other income 2,434 1,991 4,145 3,714 Interest and other expense (220 ) (483 ) (4,351 ) (688 ) (Provision)/benefit for income taxes (2,003 ) (48 ) 1,676 (1,645 ) Net income $ 6,051 $ 834 $ 41,877 $ 4,230

Note 11 - Fair Value Measurem33

Note 11 - Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2018
Notes Tables
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	Asset (Liability) Fair Value Measurements Using Fair Value at Inputs Considered as: Description June 30, 2018 Level 1 Level 2 Level 3 Derivative instruments $ (869 ) $ (869 ) $ - $ - Preferred stock, and other equity instruments $ 86,804 $ 86,804 $ - $ - Trust preferred and exchange traded debt instruments $ 4,760 $ 4,760 $ - $ - Asset (Liability) Fair Value Measurements Using Fair Value at Inputs Considered as: Description December 31, 2017 Level 1 Level 2 Level 3 Derivative instruments $ (2,428 ) $ (2,428 ) $ - $ - Preferred stock, and other equity instruments $ 115,578 $ 115,578 $ - $ - Trust preferred and exchange traded debt instruments $ 5,121 $ 5,121 $ - $ -

Note 12 - Reclassifications F34

Note 12 - Reclassifications From Accumulated Other Comprehensive Income (Tables)	6 Months Ended
	Jun. 30, 2018
Notes Tables
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	Changes in Accumulated Other Comprehensive Income From Unrealized Gains and Losses on Available-for-Sale Securities For the three months ended June 30, 2018 and 2017 (net of tax) 2018 2017 Balance at April 1 $ 102 $ 5,415 Other comprehensive income before reclassifications 43 1,799 Amounts reclassified from accumulated other comprehensive income - 285 Net current-period other comprehensive income 43 2,084 Balance at June 30 $ 145 $ 7,499 Changes in Accumulated Other Comprehensive Income From Unrealized Gains and Losses on Available-for-Sale Securities For the six months ended June 30, 2018 and 2017 (net of tax) 2018 2017 Balance at January 1 [1] $ 160 $ 3,540 Other comprehensive income before reclassifications (15 ) 3,589 Amounts reclassified from accumulated other comprehensive income - 370 Net current-period other comprehensive income (15 ) 3,959 Balance at June 30 $ 145 $ 7,499
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]	Reclassifications from Accumulated Other Comprehensive Income for the three and six months ended June 30, 2018 and 2017 Three months ended June 30, 2018 2017 Affected Line Item in Statement of Operations Unrealized gains/(losses) on available-for-sale debt securities $ - $ (438 ) Gain/(loss) on marketable securities Total before tax - (438 ) Tax (provision)/benefit - 153 Total reclassifications $ - $ (285 ) Six months ended June 30, 2018 2017 Affected Line Item in Statement of Operations Unrealized gains/(losses) on available-for-sale debt securities $ - $ (569 ) Gain/(loss) on marketable securities Total before tax - (569 ) Tax benefit - 199 Total reclassifications $ - $ (370 )

Note 17 - Revenue Recognition (

Note 17 - Revenue Recognition (Tables)	6 Months Ended
	Jun. 30, 2018
Notes Tables
Contract with Customer, Asset and Liability [Table Text Block]	Contract assets - short-term (included in accounts receivable) Three months ended June 30, 2018 Beginning balance at March 31, 2018 $ 651 Additions 1,110 Reductions (651 ) Ending balance at June 30, 2018 $ 1,110 Six months ended June 30, 2018 Beginning balance at January 1, 2018 $ 505 Additions 1,761 Reductions (1,156 ) Ending balance at June 30, 2018 $ 1,110 As Reported Under Prior Standard Contract Liabilities Topic 606 Topic 605 Change Current Beginning balance at March 31, 2018 $ 5,650 $ 2,529 $ 3,121 Revenue recognized for the three months ended June 30, 2018 (165 ) (24 ) (141 ) Ending balance at June 30, 2018 5,485 2,505 2,980 Beginning balance at January 1, 2018 5,780 2,529 3,251 Revenue recognized for the six months ended June 30, 2018 (295 ) (24 ) (271 ) Ending balance at June 30, 2018 $ 5,485 $ 2,505 $ 2,980 Long term Beginning balance at March 31, 2018 $ 13,843 $ 11,308 $ 2,535 Additions 458 458 - Revenue recognized for the three months ended June 30, 2018 (1,631 ) (1,173 ) (458 ) Ending balance at June 30, 2018 12,670 10,593 2,077 Beginning balance at January 1, 2018 15,233 11,940 3,293 Additions 458 458 - Revenue recognized for the six months ended June 30, 2018 (3,021 ) (1,805 ) (1,216 ) Ending balance at June 30, 2018 $ 12,670 $ 10,593 $ 2,077
Disaggregation of Revenue [Table Text Block]	Three months ended June 30, Six months ended June 30, 2018 2017 (a) 2018 2017 (a) Contract revenue from customers with > 1 year arrangements $ 17,908 $ 11,973 $ 33,158 $ 25,927 Contract revenue from customers with < 1 year arrangement 70,373 56,007 124,414 96,122 Revenue from non-contractual arrangements 55 68 110 110 BTC rebate - (13,599 ) Total revenue $ 88,336 $ 68,048 $ 144,083 $ 122,159 Three months ended June 30, Six months ended June 30, 2018 2017 (a) 2018 2017 (a) Bill and hold revenue $ 13,373 $ 3,460 $ 20,894 $ 7,958 Non-bill and hold revenue 74,963 64,588 123,189 114,201 Total revenue $ 88,336 $ 68,048 $ 144,083 $ 122,159
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]	Three months ended June 30, 2018 Balances Prior to Adoption of Topic 606 Adjustments As Reported Revenue $ 86,595 $ 1,058 $ 87,653 Cost of goods sold 72,915 303 73,218 Gross profit 7,516 755 8,271 Income from operations 5,085 755 5,840 Income before income taxes 7,299 755 8,054 (Benefit)/provision for income taxes 1,814 189 2,003 Net income $ 5,485 $ 566 $ 6,051 Basic earnings per share $ 0.13 $ 0.01 $ 0.14 Diluted earnings per share $ 0.13 $ 0.01 $ 0.14 Comprehensive income $ 5,528 $ 566 $ 6,094 Six months ended June 30, 2018 Balances Prior to Adoption of Topic 606 Adjustments As Reported Revenue $ 139,999 $ 2,597 $ 142,596 Cost of goods sold 84,944 413 85,357 Gross profit 43,594 2,184 45,778 Income from operations 38,223 2,184 40,407 Income before income taxes 38,017 2,184 40,201 (Benefit)/provision for income taxes (2,165 ) 489 (1,676 ) Net income $ 40,182 $ 1,695 $ 41,877 Basic earnings per share $ 0.92 $ 0.04 $ 0.96 Diluted earnings per share $ 0.92 $ 0.04 $ 0.96 Comprehensive income $ 40,167 $ 1,695 $ 41,862 Balances Prior to Adoption of Topic 606 Adjustments As Re ported Accounts receivable $ 21,280 $ 1,110 $ 22,390 Inventory 48,289 (768 ) 47,521 Income tax receivable 3,513 (32 ) 3,481 Total current assets 366,642 310 366,952 Total assets 477,101 310 477,411 Deferred revenue - short term 2,712 2,980 5,692 Total current liabilities 50,507 2,980 53,487 Deferred revenue - long term 15,065 2,077 17,142 Noncurrent deferred income tax liability 18,424 (1,264 ) 17,160 Total noncurrent liabilities 34,618 813 35,431 Total liabilities 85,125 3,793 88,918 Retained earnings 109,649 (3,483 ) 106,166 Total stockholders' equity 391,976 (3,483 ) 388,493 Total liabilities and stockholders' equity $ 477,101 $ 310 $ 477,411 Balances Prior to Adoption of As Reported Topic 606 Adjustments or Restated Change in net income $ 40,182 $ 1,695 $ 41,877 Benefit for deferred income taxes (2,621 ) (1,264 ) (3,885 ) Changes in operating assets and liabilities: Accounts receivables 693 (1,110 ) (417 ) Inventory (4,528 ) 768 (3,760 ) Income tax receivable 3,424 32 3,456 Deferred revenue (1,482 ) (121 ) (1,603 ) Net cash provided by operating activities $ 65,360 $ - $ 65,360

Note 18 - Change in Accountin36

Note 18 - Change in Accounting Principle and Error Corrections (Tables)	6 Months Ended
	Jun. 30, 2018
Notes Tables
Gain (Loss) on Securities [Table Text Block]	Three months ended June 30, Six months ended June 30, 2018 2017* 2018 2017* Net gains/(losses) recognized on equity securities $ 281 $ (438 ) $ (4,088 ) $ (569 ) Less: net gains/(losses) recognized during the period on equity securities sold during the period 663 (438 ) 2,324 (569 ) Unrealized gains/(losses) during the reporting period on equity securities held at the reporting date $ (382 ) $ - $ (6,412 ) $ - Three months ended March 31, 2018 2017 Net losses recognized on equity securities $ (4,369 ) $ (131 ) Less: net gains recognized during the period on equity securities sold during the period 1,661 (131 ) Unrealized losses during the reporting period on equity securities held at the reporting date $ (6,030 ) $ -
Schedule of Error Corrections and Prior Period Adjustments [Table Text Block]	Adjustment for Adoption Balance sheet impact to previously reported period As Reported of Topic 321 As Recast Liabilities and stockholders' equity Additional other comprehensive income $ 3,847 $ (3,745 ) $ 102 Retained earnings 96,371 3,745 100,116 Income statement impact to previously reported period Gain/(loss) on marketable securities $ 1,375 $ (5,744 ) $ (4,369 ) Income before income taxes 37,891 (5,744 ) 32,147 (Benefit)/provision for income taxes (2,463 ) (1,216 ) (3,679 ) Net income 40,354 (4,528 ) 35,826 Earnings per common share, basic and diluted: 0.92 (0.10 ) 0.82 Other comprehensive income from unrealized net gain on available for sale securities (5,818 ) 5,744 (74 ) Income tax effect 1,232 (1,216 ) 16 Total unrealized (loss)/gain, net of tax (4,586 ) 4,528 (58 ) Cash flow impact provided by operating activities Net income $ 40,354 $ (4,528 ) $ 35,826 Benefit for deferred income taxes (2,388 ) (1,216 ) (3,604 ) Change in fair value of equity securities - 6,030 6,030 Other than temporary impairment of marketable securities 286 (286 ) -

Note 1 - Nature of Operations37

Note 1 - Nature of Operations and Basis of Presentation (Details Textual)	6 Months Ended
	Jun. 30, 2018a
Number of Operating Segments	2
Batesville, Arkansas [Member]
Area of Land	2,200

Note 2 - Reinstatement of the38

Note 2 - Reinstatement of the Biodiesel Blenders' Tax Credit and Small Agri-biodiesel Producer Tax Credit (Details Textual) $ in Thousands, gal in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2018USD ($)	Dec. 31, 2017$ / itemgal
Biodiesel Blenders Credit [Member]
Benefit From Tax Credit, Pretax	$ 28,869
Income Tax Credits and Adjustments	42,428
Biodiesel Blenders Credit [Member] | Owed to Customers [Member]
Income Tax Credits and Adjustments	$ 13,559
Small Agri Biodiesel Producers Credit [Member]
Tax Credit Per Gallon Of Agri Biodiesel Sold | $ / item		0.1
Number of Gallons Sold | gal		15

Note 3 - Inventory (Details Tex

Note 3 - Inventory (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Inventory Write-down	$ 0	$ 957	$ 0	$ 957

Note 3 - Inventory - Carrying V

Note 3 - Inventory - Carrying Values of Inventory (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Finished goods	$ 15,421	$ 22,998
Work in process	1,549	1,735
Raw materials and supplies	40,671	27,143
Inventory, gross	57,641	51,876
LIFO reserve	(10,120)	(8,122)
Total inventory	$ 47,521	$ 43,754

Note 4 - Derivative Instrumen41

Note 4 - Derivative Instruments (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net, Total	$ (3,109)	$ 524	$ (3,271)	$ 1,803
Restricted Cash and Cash Equivalents, Total	$ 1,423		$ 1,423		$ 2,660

Note 4 - Derivative Instrumen42

Note 4 - Derivative Instruments - Carrying Value of Derivative Instruments (Details) $ in Thousands	Jun. 30, 2018USD ($)	Dec. 31, 2017USD ($)
Commodity Option [Member]
Quantity (contracts) Short	100	200
Fair Value Liabilities	$ (940)	$ (2,428)
Future [Member]
Quantity (contracts) Short	171
Fair Value Liabilities
Fair Value Liabilities	$ 71

Note 5 - Marketable Securitie43

Note 5 - Marketable Securities (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	$ 297	$ 14,103
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	168	2,903
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ 7	$ 124

Note 5 - Marketable Securitie44

Note 5 - Marketable Securities - Marketable Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Adjusted Cost	$ 4,576	$ 4,849
Unrealized Gains	193	272
Unrealized Losses	(9)
Fair Value	4,760	5,121
Corporate Debt Securities [Member]
Adjusted Cost	1,429	1,702
Unrealized Gains	96	158
Unrealized Losses	(9)
Fair Value	1,516	1,860
Trust Preferred Securities [Member]
Adjusted Cost	3,147	3,147
Unrealized Gains	97	114
Unrealized Losses
Fair Value	$ 3,244	$ 3,261

Note 6 - Accrued Expenses and45

Note 6 - Accrued Expenses and Other Current Liabilities - Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Accrued employee liabilities	$ 4,681	$ 976
Accrued property, franchise, motor fuel and other taxes	1,948	1,387
Other	423	105
Total	$ 7,052	$ 2,468

Note 7 - Borrowings (Details Te

Note 7 - Borrowings (Details Textual) - Revolving Credit Facility [Member] - USD ($) $ in Thousands	May 25, 2016	Jun. 30, 2018	Dec. 31, 2017	May 25, 2015	Apr. 16, 2015
Long-term Line of Credit, Total		$ 0	$ 0
Regions Bank and PNC Bank N.A. [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 165,000				$ 150,000
Line of Credit, Additional Borrowing Capacity	$ 15,000
Line of Credit Facility, Expiration Period	5 years
Line of Credit Facility Sublimit for Letters of Credit				$ 30,000
Line of Credit Facility Swingline Loans				$ 15,000

Note 7 - Borrowings - Leverage

Note 7 - Borrowings - Leverage Ratio (Details)	6 Months Ended
	Jun. 30, 2018
Leverage Ratio1 [Member]
Commitment fee	0.15%
Leverage Ratio1 [Member] | London Interbank Offered Rate (LIBOR) [Member]
Spread on variable rate	1.25%
Leverage Ratio1 [Member] | Base Rate [Member]
Spread on variable rate	0.25%
Leverage Ratio1 [Member] | Minimum [Member]
Leverage ratio	1
Leverage Ratio 2 [Member]
Commitment fee	0.20%
Leverage Ratio 2 [Member] | London Interbank Offered Rate (LIBOR) [Member]
Spread on variable rate	1.50%
Leverage Ratio 2 [Member] | Base Rate [Member]
Spread on variable rate	0.50%
Leverage Ratio 2 [Member] | Minimum [Member]
Leverage ratio	1
Leverage Ratio 2 [Member] | Maximum [Member]
Leverage ratio	1.5
Leverage Ratio 3 [Member]
Commitment fee	0.25%
Leverage Ratio 3 [Member] | London Interbank Offered Rate (LIBOR) [Member]
Spread on variable rate	1.75%
Leverage Ratio 3 [Member] | Base Rate [Member]
Spread on variable rate	0.75%
Leverage Ratio 3 [Member] | Minimum [Member]
Leverage ratio	1.5
Leverage Ratio 3 [Member] | Maximum [Member]
Leverage ratio	2
Leverage Ratio 4 [Member]
Commitment fee	0.30%
Leverage Ratio 4 [Member] | London Interbank Offered Rate (LIBOR) [Member]
Spread on variable rate	2.00%
Leverage Ratio 4 [Member] | Base Rate [Member]
Spread on variable rate	1.00%
Leverage Ratio 4 [Member] | Minimum [Member]
Leverage ratio	2
Leverage Ratio 4 [Member] | Maximum [Member]
Leverage ratio	2.5
Leverage Ratio 5 [Member]
Commitment fee	0.35%
Leverage Ratio 5 [Member] | London Interbank Offered Rate (LIBOR) [Member]
Spread on variable rate	2.25%
Leverage Ratio 5 [Member] | Base Rate [Member]
Spread on variable rate	1.25%
Leverage Ratio 5 [Member] | Minimum [Member]
Leverage ratio	2.5

Note 8 - Provision (Benefit) 48

Note 8 - Provision (Benefit) for Income Taxes (Details Textual) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Unrecognized Tax Benefits, Ending Balance	$ 0	$ 0
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total	$ 0	$ 0

Note 8 - Provision (Benefit) 49

Note 8 - Provision (Benefit) for Income Taxes - Summary of Provisions for Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Provision/(benefit) for income taxes	$ 2,003	$ (3,679)	$ 48	$ (1,676)	$ 1,645
Effective tax rate	24.90%		5.40%	(4.20%)	28.00%

Note 9 - Earnings Per Share (De

Note 9 - Earnings Per Share (Details Textual) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	30,000	0	30,000	15,000

Note 9 - Earnings Per Share - C

Note 9 - Earnings Per Share - Computation of Basic and Diluted Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net income	$ 6,051	$ 35,826	$ 834	$ 41,877	$ 4,230
Less: distributed earnings allocated to non-vested stock
Less: undistributed earnings allocated to non-vested restricted stock	(3)		(1)	(24)	(10)
Numerator for basic earnings per share	6,048		833	41,853	4,220
Effect of dilutive securities:
Add: undistributed earnings allocated to non-vested restricted stock	3		1	24	10
Less: undistributed earnings reallocated to non-vested restricted stock	(3)		(1)	(24)	(10)
Numerator for diluted earnings per share	$ 6,048		$ 833	$ 41,853	$ 4,220
Weighted average shares outstanding – basic (in shares)	43,716,726		43,665,171	43,716,698	43,641,038
Stock options and other awards (in shares)	4,216		10,517	4,870	8,362
Weighted average shares outstanding – diluted (in shares)	43,720,942		43,675,688	43,721,568	43,649,400
Basic earnings per share (in dollars per share)	$ 0.14		$ 0.02	$ 0.96	$ 0.10
Diluted earnings per share (in dollars per share)	$ 0.14		$ 0.02	$ 0.96	$ 0.10

Note 10 - Segment Information52

Note 10 - Segment Information (Details Textual)	6 Months Ended
	Jun. 30, 2018
Number of Reportable Segments	2
Chemicals [Member]
Number of Reportable Segments	2

Note 10 - Segment Information -

Note 10 - Segment Information - Revenues by Geographical Areas (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017		Jun. 30, 2018	Jun. 30, 2017
Revenues	$ 88,336	$ 68,048	[1]	$ 144,083	$ 122,159	[1]
UNITED STATES
Revenues	87,525	66,918		142,791	120,333
All Foreign Countries [Member]
Revenues	$ 811	$ 1,130		$ 1,292	$ 1,826
[1]	Prior periods have not been adjusted under the modified retrospective method for Topic 606.

Note 10 - Segment Information54

Note 10 - Segment Information - Summary of Business by Segment (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017		Jun. 30, 2018	Jun. 30, 2017
Revenues	$ 88,336		$ 68,048	[1]	$ 144,083	$ 122,159	[1]
Segment gross profit
Gross profit	8,271		1,798		45,778	7,928
Income before interest and taxes	5,840		(626)		40,407	2,849
Interest and other income	2,434		1,991		4,145	3,714
Interest and other expense	(220)		(483)		(4,351)	(688)
(Provision)/benefit for income taxes	(2,003)	$ 3,679	(48)		1,676	(1,645)
Net income	6,051	$ 35,826	834		41,877	4,230
Operating Segments [Member] | Chemicals [Member]
Revenues	31,527		23,351		60,608	49,708
Segment gross profit
Gross profit	8,016		5,332		15,572	12,341
Operating Segments [Member] | Chemicals [Member] | Custom Chemicals [Member]
Revenues	27,072		19,644		50,492	41,596
Operating Segments [Member] | Chemicals [Member] | Performance Chemicals [Member]
Revenues	4,455		3,707		10,116	8,112
Operating Segments [Member] | Biofuels [Member]
Revenues	56,809		44,697		83,475	72,451
Segment gross profit
Gross profit	255		(3,534)		30,206	(4,413)
Corporate, Non-Segment [Member]
Segment gross profit
Corporate expenses	$ (2,431)		$ (2,424)		$ (5,371)	$ (5,079)
[1]	Prior periods have not been adjusted under the modified retrospective method for Topic 606.

Note 11 - Fair Value Measurem55

Note 11 - Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Trust preferred and exchange traded debt instruments	$ 4,760	$ 5,121
Fair Value, Measurements, Recurring [Member]
Derivative instruments	(869)	(2,428)
Preferred stock, and other equity instruments	86,804	115,578
Trust preferred and exchange traded debt instruments	4,760	5,121
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Derivative instruments	(869)	(2,428)
Preferred stock, and other equity instruments	86,804	115,578
Trust preferred and exchange traded debt instruments	4,760	5,121
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Derivative instruments
Preferred stock, and other equity instruments
Trust preferred and exchange traded debt instruments
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Derivative instruments
Preferred stock, and other equity instruments
Trust preferred and exchange traded debt instruments

Note 12 - Reclassifications F56

Note 12 - Reclassifications From Accumulated Other Comprehensive Income (Details Textual) $ in Thousands	Jun. 30, 2018USD ($)
Accounting Standards Update 2016-01 [Member] | AOCI Attributable to Parent [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	$ (8,273)

Note 12 - Reclassifications F57

Note 12 - Reclassifications From Accumulated Other Comprehensive Income - Changes in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018		Jun. 30, 2017
Beginning balance			$ 351,596
Ending balance	$ 388,493		388,493
AOCI Attributable to Parent [Member]
Beginning balance	102	$ 5,415	160	[1]	$ 3,540	[1]
Other comprehensive income before reclassifications	43	1,799	(15)		3,589
Amounts reclassified from accumulated other comprehensive income		285			370
Net current-period other comprehensive income	43	2,084	(15)		3,959
Ending balance	145	7,499	145		7,499
Net current-period other comprehensive income	$ 43	$ 2,084	$ (15)		$ 3,959
[1]	The beginning balance for 2018 was decreased $8,273 to reflect the impact of the adoption of ASU 2016-01. See Note 18 for additional information.

Note 12 - Reclassifications F58

Note 12 - Reclassifications From Accumulated Other Comprehensive Income - Reclassifications From Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Gain/(loss) on marketable securities	$ 281	$ (4,369)	$ (438)	$ (4,088)	$ (569)
Income before income taxes	8,054	32,147	882	40,201	5,875
Tax (provision)/benefit	(2,003)	3,679	(48)	1,676	(1,645)
Net income	6,051	$ 35,826	834	41,877	4,230
Reclassification out of Accumulated Other Comprehensive Income [Member]
Gain/(loss) on marketable securities			(438)		(569)
Income before income taxes			(438)		(569)
Tax (provision)/benefit			153		199
Net income			$ (285)		$ (370)

Note 15 - Intangible Asset (Det

Note 15 - Intangible Asset (Details Textual) - USD ($) $ in Thousands	1 Months Ended
	Apr. 30, 2015	Jun. 30, 2018	Dec. 31, 2017
Payments to Acquire Intangible Assets	$ 1,408
Intangible Assets, Net (Excluding Goodwill), Total		$ 1,408	$ 1,408

Note 17 - Revenue Recognition 1

Note 17 - Revenue Recognition 1 (Details Textual) - USD ($) $ in Thousands	Jan. 01, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Contract with Customer, Liability, Current		$ 5,485	$ 5,650	$ 5,780
Contract with Customer, Liability, Noncurrent		12,670	$ 13,843	15,233
Inventory, Net, Total		47,521		$ 43,754
Contract with Customer, Asset, Net, Total		0
Revenue, Remaining Performance Obligation, Amount		$ 18,155
Minimum [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period		1 year
Maximum [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period		5 years
Accounting Standards Update 2014-09 [Member]
Cumulative Effect on Retained Earnings, before Tax	$ (6,900)
Cumulative Effect on Retained Earnings, Net of Tax, Total	(5,178)
Contract with Customer, Liability, Current	3,251
Contract with Customer, Liability, Noncurrent	3,293
Inventory, Net, Total	$ (356)

Note 17 - Revenue Recognition 2

Note 17 - Revenue Recognition 2 (Details Textual)	Jun. 30, 2018
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-07-01
Revenue, Remaining Performance Obligation, Percentage	30.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01
Revenue, Remaining Performance Obligation, Percentage	70.00%

Note 17 - Revenue Recognition -

Note 17 - Revenue Recognition - Contract Assets and Contract Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018
Beginning balance	$ 651	$ 505
Contract assets, additions	1,110	1,761
Reductions	(651)	(1,156)
Ending balance	1,110	1,110
Reductions	(651)	(1,156)
Contract liabilities, current	5,650	5,780
Revenue recognized, current	(165)	(295)
Contract liabilities, current	5,485	5,485
Revenue recognized, current	(165)	(295)
Contract liabilities, long-term	13,843	15,233
Contract liabilities, additions	458	458
Revenue recognized, long-term	(1,631)	(3,021)
Contract liabilities, long-term	12,670	12,670
Calculated under Revenue Guidance in Effect before Topic 606 [Member]
Contract liabilities, current	2,529	2,529
Revenue recognized, current	(24)	(24)
Contract liabilities, current	2,505	2,505
Revenue recognized, current	(24)	(24)
Contract liabilities, long-term	11,308	11,940
Contract liabilities, additions	458	458
Revenue recognized, long-term	(1,173)	(1,805)
Contract liabilities, long-term	10,593	10,593
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Contract liabilities, current	3,121	3,251
Revenue recognized, current	(141)	(271)
Contract liabilities, current	2,980	2,980
Revenue recognized, current	(141)	(271)
Contract liabilities, long-term	2,535	3,293
Contract liabilities, additions
Revenue recognized, long-term	(458)	(1,216)
Contract liabilities, long-term	$ 2,077	$ 2,077

Note 17 - Revenue Recognition63

Note 17 - Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	[1]	Jun. 30, 2018	Jun. 30, 2017	[1]
Revenue	$ 88,336	$ 68,048		$ 144,083	$ 122,159
Revenue from non-contractual arrangements	55	68		110	110
BTC rebate				(13,599)
Bill and Hold Revenue [Member]
Revenue	13,373	3,460		20,894	7,958
Non-bill and Hold Revenue [Member]
Revenue	74,963	64,588		123,189	114,201
Long-term Contract Revenue [Member]
Revenue	17,908	11,973		33,158	25,927
Short-term Contract Revenue [Member]
Revenue	$ 70,373	$ 56,007		$ 124,414	$ 96,122
[1]	Prior periods have not been adjusted under the modified retrospective method for Topic 606.

Note 17 - Revenue Recognition64

Note 17 - Revenue Recognition - Adoption of ASC 606 (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017		Jun. 30, 2018	Jun. 30, 2017		Jan. 01, 2018	Dec. 31, 2017
Revenue	$ 88,336		$ 68,048	[1]	$ 144,083	$ 122,159	[1]
Cost of goods sold	73,218				85,357
Gross profit	8,271		1,798		45,778	7,928
Income from operations	5,840		(626)		40,407	2,849
Income before income taxes	8,054	$ 32,147	882		40,201	5,875
Provision/(benefit) for income taxes	2,003	(3,679)	48		(1,676)	1,645
Net income	$ 6,051	35,826	$ 834		$ 41,877	$ 4,230
Basic earnings per share (in dollars per share)	$ 0.14		$ 0.02		$ 0.96	$ 0.10
Diluted earnings per share (in dollars per share)	$ 0.14		$ 0.02		$ 0.96	$ 0.10
Comprehensive income	$ 6,094		$ 2,918		$ 41,862	$ 8,189
Accounts receivable	22,390				22,390				$ 21,973
Inventory	47,521				47,521				43,754
Income tax receivable	3,481				3,481				6,937
Total current assets	366,952				366,952				310,358
Total assets	477,411				477,411				425,563
Deferred revenue – short-term	5,692				5,692				2,736
Total current liabilities	53,487				53,487				35,281
Deferred revenue – long-term	17,142				17,142				16,522
Noncurrent deferred income tax liability	17,160				17,160				21,049
Total noncurrent liabilities	35,431				35,431				38,686
Total liabilities	88,918				88,918				73,967
Retained earnings	106,166	100,116			106,166				61,195
Total stockholders' equity	388,493				388,493				351,596
Total liabilities and stockholders' equity	477,411				477,411				$ 425,563
Change in net income	6,051	35,826	834		41,877	4,230
Benefit for deferred income taxes		$ (3,604)			(3,885)	(1,763)
Accounts receivable					(417)	5,613
Inventory					(3,767)	15,204
Income tax receivable					3,456	4,262
Deferred revenue					(1,603)	(1,972)
Net cash provided by operating activities					65,360	27,959
Accounting Standards Update 2014-09 [Member]
Inventory								$ (356)
Non-related Parties [Member]
Revenue	87,653		67,972		142,596	121,620
Cost of goods sold	73,218		$ 60,227		85,357	$ 104,381
Calculated under Revenue Guidance in Effect before Topic 606 [Member]
Cost of goods sold	72,915				84,944
Gross profit	7,516				43,594
Income from operations	5,085				38,223
Income before income taxes	7,299				38,017
Provision/(benefit) for income taxes	1,814				(2,165)
Net income	$ 5,485				$ 40,182
Basic earnings per share (in dollars per share)	$ 0.13				$ 0.92
Diluted earnings per share (in dollars per share)	$ 0.13				$ 0.92
Comprehensive income	$ 5,528				$ 40,167
Accounts receivable	21,280				21,280
Inventory	48,289				48,289
Income tax receivable	3,513				3,513
Total current assets	366,642				366,642
Total assets	477,101				477,101
Deferred revenue – short-term	2,712				2,712
Total current liabilities	50,507				50,507
Deferred revenue – long-term	15,065				15,065
Noncurrent deferred income tax liability	18,424				18,424
Total noncurrent liabilities	34,618				34,618
Total liabilities	85,125				85,125
Retained earnings	109,649				109,649
Total stockholders' equity	391,976				391,976
Total liabilities and stockholders' equity	477,101				477,101
Change in net income	5,485				40,182
Benefit for deferred income taxes					(2,621)
Accounts receivable					693
Inventory					(4,528)
Income tax receivable					3,424
Deferred revenue					(1,482)
Net cash provided by operating activities					65,360
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Non-related Parties [Member]
Revenue	86,595				139,999
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] | Accounting Standards Update 2014-09 [Member]
Cost of goods sold	303				413
Gross profit	755				2,184
Income from operations	755				2,184
Income before income taxes	755				2,184
Provision/(benefit) for income taxes	189				489
Net income	$ 566				$ 1,695
Basic earnings per share (in dollars per share)	$ 0.01				$ 0.04
Diluted earnings per share (in dollars per share)	$ 0.01				$ 0.04
Comprehensive income	$ 566				$ 1,695
Accounts receivable	1,110				1,110
Inventory	(768)				(768)
Income tax receivable	(32)				(32)
Total current assets	310				310
Total assets	310				310
Deferred revenue – short-term	2,980				2,980
Total current liabilities	2,980				2,980
Deferred revenue – long-term	2,077				2,077
Noncurrent deferred income tax liability	(1,264)				(1,264)
Total noncurrent liabilities	813				813
Total liabilities	3,793				3,793
Retained earnings	(3,483)				(3,483)
Total stockholders' equity	(3,483)				(3,483)
Total liabilities and stockholders' equity	310				310
Change in net income	566				1,695
Benefit for deferred income taxes					(1,264)
Accounts receivable					(1,110)
Inventory					768
Income tax receivable					32
Deferred revenue					(121)
Net cash provided by operating activities
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] | Non-related Parties [Member] | Accounting Standards Update 2014-09 [Member]
Revenue	$ 1,058				$ 2,597
[1]	Prior periods have not been adjusted under the modified retrospective method for Topic 606.

Note 18 - Change in Accountin65

Note 18 - Change in Accounting Principle and Error Corrections (Details Textual) - USD ($) $ in Thousands	3 Months Ended					6 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017	[1]	Mar. 31, 2017	Jun. 30, 2018	Jun. 30, 2017	[1]
Equity Securities, FV-NI, Unrealized Gain (Loss), Total	$ (382)	$ (6,030)				$ (6,412)
Failure to Adopt ASU 2016-01 in Q1 2018 [Member]
Equity Securities, FV-NI, Unrealized Gain (Loss), Total						(5,744)
Equity Securities, Fv-Ni, Unrealized Gain (Loss), Net of Tax						(4,528)
Accounting Standards Update 2016-01 [Member]
Cumulative Effect on Retained Earnings, before Tax						13,139
Cumulative Effect on Retained Earnings, Net of Tax, Total						$ 8,273
[1]	Prior periods have not been adjusted under the modified retrospective method for Topic 321.

Note 18 - Change in Accountin66

Note 18 - Change in Accounting Principle and Error Corrections - Unrealized Gains and Losses on Equity Securities (Details) - USD ($) $ in Thousands	3 Months Ended					6 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017	[1]	Mar. 31, 2017	Jun. 30, 2018	Jun. 30, 2017	[1]
Net gains/(losses) recognized on equity securities	$ 281	$ (4,369)	$ (438)		$ (131)	$ (4,088)	$ (569)
Less: net gains/(losses) recognized during the period on equity securities sold during the period	663	1,661	(438)		(131)	2,324	(569)
Unrealized gains/(losses) during the reporting period on equity securities held at the reporting date	$ (382)	$ (6,030)				$ (6,412)
[1]	Prior periods have not been adjusted under the modified retrospective method for Topic 321.

Note 18 - Change in Accountin67

Note 18 - Change in Accounting Principle and Error Corrections - Restated Balances (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended					6 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017		Mar. 31, 2017	Jun. 30, 2018	Jun. 30, 2017		Dec. 31, 2017
Accumulated other comprehensive income	$ 145	$ 102				$ 145			$ 8,433
Retained earnings	106,166	100,116				106,166			$ 61,195
Gain/(loss) on marketable securities	281	(4,369)	$ (438)			(4,088)	$ (569)
Income before income taxes	8,054	32,147	882			40,201	5,875
Provision/(benefit) for income taxes	2,003	(3,679)	48			(1,676)	1,645
Net income	6,051	$ 35,826	834			41,877	4,230
Earnings per common share, basic and diluted: (in dollars per share)		$ 0.82
Other comprehensive income/(loss) from unrealized net gains/(losses) on available-for-sale securities	55	$ (74)	3,210			(19)	6,096
Income tax effect	12	16	1,126			(4)	2,137
Total unrealized (loss)/gain, net of tax	43	(58)	2,084			(15)	3,959
Benefit for deferred income taxes		(3,604)				(3,885)	(1,763)
Change in fair value of equity securities	$ 382	6,030		[1]		6,412		[1]
Other than temporary impairment of marketable securities							$ 177
Failure to Adopt ASU 2016-01 in Q1 2018 [Member]
Change in fair value of equity securities						$ 5,744
Previously Reported [Member]
Accumulated other comprehensive income		3,847
Retained earnings		96,371
Gain/(loss) on marketable securities		1,375
Income before income taxes		37,891
Provision/(benefit) for income taxes		(2,463)
Net income		$ 40,354
Earnings per common share, basic and diluted: (in dollars per share)		$ 0.92
Other comprehensive income/(loss) from unrealized net gains/(losses) on available-for-sale securities		$ (5,818)
Income tax effect		1,232
Total unrealized (loss)/gain, net of tax		(4,586)
Benefit for deferred income taxes		(2,388)
Change in fair value of equity securities
Other than temporary impairment of marketable securities		286
Restatement Adjustment [Member] | Failure to Adopt ASU 2016-01 in Q1 2018 [Member]
Accumulated other comprehensive income		(3,745)
Retained earnings		3,745
Gain/(loss) on marketable securities		(5,744)
Income before income taxes		(5,744)
Provision/(benefit) for income taxes		(1,216)
Net income		$ (4,528)
Earnings per common share, basic and diluted: (in dollars per share)		$ (0.10)
Other comprehensive income/(loss) from unrealized net gains/(losses) on available-for-sale securities		$ 5,744
Income tax effect		(1,216)
Total unrealized (loss)/gain, net of tax		4,528
Benefit for deferred income taxes		(1,216)
Change in fair value of equity securities		6,030
Other than temporary impairment of marketable securities		$ (286)
[1]	Prior periods have not been adjusted under the modified retrospective method for Topic 321.