Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 39,027	$ 34,830
Accounts receivable, net of allowance for doubtful accounts of $2,610 and $400, respectively	53,727	46,900
Inventories	44,862	42,437
Prepaid expenses and other current assets	18,751	18,692
Total current assets	156,367	142,859
Satellite network and other equipment, net	168,724	174,178
Goodwill	166,129	166,678
Intangible assets, net	92,832	99,339
Other assets	12,729	12,036
Deferred income taxes	173	104
Total assets	596,954	595,194
Current liabilities:
Accounts payable	14,333	29,298
Accrued liabilities	42,384	33,016
Current portion of deferred revenue	5,010	6,263
Total current liabilities	61,727	68,577
Note payable-related party	1,332	1,366
Notes payable, net of unamortized deferred issuance costs	245,519	245,131
Deferred revenue, net of current portion	3,834	2,459
Deferred tax liabilities	16,695	17,646
Other liabilities	6,242	13,619
Total liabilities	335,349	348,798
Commitments and contingencies
ORBCOMM Inc. stockholders' equity
Common stock, par value $0.001; 250,000,000 shares authorized; 78,593,002 and 74,436,579 shares issued at June 30, 2018 and December 31, 2017, respectively	79	74
Additional paid-in capital	444,069	411,298
Accumulated other comprehensive (loss) income	(141)	256
Accumulated deficit	(183,564)	(166,245)
Less treasury stock, at cost; 29,990 shares at June 30, 2018 and December 31, 2017	(96)	(96)
Total ORBCOMM Inc. stockholders' equity	260,734	245,663
Noncontrolling interests	871	733
Total equity	261,605	246,396
Total liabilities and equity	596,954	595,194
Series A Convertible Preferred Stock [Member]
ORBCOMM Inc. stockholders' equity
Series A Convertible Preferred Stock, par value $0.001; 1,000,000 shares authorized; 38,672 and 37,544 shares issued and outstanding at June 30, 2018 and December 31, 2017, respectively	$ 387	$ 376