Income taxes (Tables)

12 Months Ended

Dec. 31, 2018

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

The following summarizes the (benefit) / provision for income taxes:

Years Ended December 31,	2018			2017			2016
(in thousands)
Current:
Federal	$	(507	)	$	(3,690	)	$	4,981
State and local		(167	)		532			567
		(674	)		(3,158	)		5,548
Deferred:
Federal		(693	)		4,293			949
State and local		(337	)		(288	)		131
		(1,030	)		4,005			1,080
(Benefit) expense for income taxes	$	(1,704	)	$	847		$	6,628

Schedule of Effective Income Tax Rate Reconciliation

Reconciliation of the Company's actual tax rate to the U.S. Federal statutory rate is as follows:

Years ended December 31,	2018			2017			2016
Income tax rates
- Statutory U.S. federal rate		21	%		35	%		35	%
- State income taxes, net of federal benefit		0	%		4	%		3	%
- Excess tax benefits related to stock compensation		—	%		(20	)%		—
- Effect of 2017 Tax Act		2	%		(12	)%		—
- Effect of 2018 net deferred tax asset valuation		(20	%)		—			—
Total		3	%		7	%		38	%

Schedule of Deferred Tax Assets and Liabilities

The net deferred income tax assets (liabilities) consisted of the following at:

December 31 ,	2018			2017
(in thousands)
- Depreciation & amortization	$	(5,865	)	$	(3,665	)
- Reserves for doubtful accounts		159			115
- Inventory reserve		2,503			218
- Non qualified stock options		778			409
- Net operating losses		9,574			1,450
- Amt credit		86			-
- Deferred interest		3,637			-
- Valuation allowance		(11,315	)		-
Total		(443	)		(1,473	)