CONSOLIDATED BALANCE SHEETS - (UNAUDITED) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
ASSETS
Cash and cash equivalents	$ 37,936	$ 37,682
Restricted cash	1,515	1,514
Accounts receivable, net of allowance of $572 and $582 in 2018 and 2017, respectively	400	273
Income tax receivable	0	907
Inventories, net	9,048	9,385
Prepaid expenses and other current assets	3,831	2,607
Deferred commissions	3,912	3,880
Total current assets	56,642	56,248
Property and equipment, net	3,199	3,537
Construction in progress	2,263	777
Long-term restricted cash	7,598	7,565
Other assets	3,944	3,876
Long-term deferred tax assets, net	5,362	4,239
Total assets	79,008	76,242
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current portion of capital leases	152	228
Accounts payable	5,453	6,008
Accrued expenses	5,724	5,771
Commissions and incentives payable	10,690	9,658
Taxes payable	3,086	2,404
Current notes payable	916	815
Deferred revenue	8,605	8,561
Total current liabilities	34,626	33,445
Capital leases, excluding current portion	127	144
Long-term deferred tax liabilities	1,153	1,147
Other long-term liabilities	2,850	1,265
Total liabilities	38,756	36,001
Commitments and contingencies
Shareholders’ equity:
Preferred stock, $0.01 par value, 1,000,000 shares authorized, no shares issued or outstanding	0	0
Common stock, $0.0001 par value, 99,000,000 shares authorized, 2,742,857 shares issued and 2,719,271 shares outstanding as of March 31, 2018 and 2,742,857 shares issued and 2,702,940 shares outstanding as of December 31, 2017	0	0
Additional paid-in capital	33,216	34,928
Retained earnings	3,586	4,190
Accumulated other comprehensive income	6,318	5,984
Treasury stock, at average cost, 23,586 shares as of March 31, 2018 and 39,917 shares as of December 31, 2017, respectively	(2,868)	(4,861)
Total shareholders’ equity	40,252	40,241
Total liabilities and shareholders’ equity	$ 79,008	$ 76,242