CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
ASSETS
Cash and cash equivalents	$ 35,561	$ 28,687
Restricted cash	1,514	1,510
Accounts receivable, net of allowance of $507 and $463 in 2017 and 2016, respectively	405	298
Income tax receivable	3	1,587
Inventories, net	10,868	11,961
Prepaid expenses and other current assets, net	2,659	3,483
Deferred commissions	3,233	3,229
Total current assets	54,243	50,755
Property and equipment, net	3,234	3,611
Construction in progress	1,294	1,012
Long-term restricted cash	6,776	6,429
Other assets	3,617	4,013
Long-term deferred tax assets, net	5,595	5,368
Total assets	74,759	71,188
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current portion of capital leases	392	357
Accounts payable	6,130	5,223
Accrued expenses	5,139	5,605
Commissions and incentives payable	9,679	8,799
Taxes payable	1,528	1,040
Current notes payable	843	801
Deferred revenue	8,326	8,156
Total current liabilities	32,037	29,981
Capital leases, excluding current portion	182	261
Long-term deferred tax liabilities	30	29
Long-term notes payable	286	567
Other long-term liabilities	1,413	1,465
Total liabilities	33,948	32,303
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, 2,753,789 shares issued and 2,711,372 shares outstanding as of June 30, 2017 and 2,758,275 shares issued and 2,688,790 shares outstanding as of December 31, 2016	0	0
Additional paid-in capital	35,293	38,190
Retained earnings	7,202	7,331
Accumulated other comprehensive income	3,482	1,834
Treasury stock, at average cost, 42,417 shares as of June 30, 2017 and 69,485 shares as of December 31, 2016, respectively	(5,166)	(8,470)
Total shareholders’ equity	40,811	38,885
Total liabilities and shareholders’ equity	$ 74,759	$ 71,188