9. Income taxes (Tables)

12 Months Ended

Dec. 31, 2017

Income Tax Disclosure [Abstract]

Provision for income taxes

	For the Years Ended December 31,
	2017			2016
Current:
Federal	$	(359	)	$	2,117
State and local		193			572
Total current		(166	)		2,689
Deferred		(292	)		(531	)
Provision (benefit) for income taxes	$	(458	)	$	2,158

Reconciliation to effective rate for income taxes

	2017						2016
	Amount			Percentage				Amount			Percentage
Federal income tax computed at the statutory rate		(274	)		34.0	%		$	1,917			34.0	%
State and local tax, net		1			(0.1	)%			320			5.7	%
U.S. domestic manufacturers’ deduction & other permanent differences		111			(13.8	)%			113			2.0	%
Changes for tax positions of prior years		118			(14.6	)%			(202	)		(3.5	)%
Change in tax rates (a)		(378	)		47.0	%			2			0.0	%
Change in tax estimate		(36	)		4.5	%			8			0.1	%
Provision (benefit) for income taxes		(458	)		57.0	%		$	2,158			38.3	%

Schedule of deferred tax assets and liabilities

	December 31,
	2017			2016
Deferred tax liabilities attributable to:
Accumulated depreciation and amortization	$	(1,784	)	$	(1,854	)
Total net deferred tax liabilities		(1,784	)		(1,854	)
Deferred tax assets attributable to:
Net operating losses		14			–
Capital loss carry-forward & investment impairment		122			166
Incentive compensation		255			126
Inventory		335			331
Allowances for doubtful accounts and discounts		161			39
Other		57			–
Total net deferred tax assets		944			662
Net deferred tax liabilities	$	(840	)	$	(1,192	)

Reconciliation of amount of unrecognized tax benefits

	2017		2016
Balance at January 1	$	63	$	265
Additions for tax positions of prior years		118		63
Release for tax positions of prior years		–		(265	)
Balance at December 31	$	181	$	63