Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 56,170	$ 62,980
Accounts receivable, less allowance of $153 in 2016 and $171 in 2015	25,216	25,982
Inventories, net	27,136	23,442
Other current assets	3,250	3,102
Total current assets	111,772	115,506
Long-term deferred tax assets	38	15
Long-term investments, net	2,508	2,866
Property, plant and equipment, net	37,574	37,450
Other assets	2,175	1,708
Total assets	154,067	157,545
Current liabilities:
Accounts payable	7,588	7,470
Accrued compensation and benefits	8,965	8,349
Accrued expenses	2,179	2,568
Accrued severance charges		195
Income taxes payable	92	31
Deferred revenue	3,403	1,988
Total current liabilities	22,227	20,601
Long-term deferred revenue	374	468
Contingent consideration obligations	253	144
Long-term income taxes payable	196	192
Deferred income taxes		55
Total liabilities	23,050	21,460
Commitments and contingencies (Note 16)
Vicor Corporation stockholders' equity:
Preferred Stock, $.01 par value, 1,000,000 shares authorized; no shares issued
Additional paid-in capital	176,344	174,337
Retained earnings	93,438	99,685
Accumulated other comprehensive loss	(561)	(577)
Treasury stock at cost: 11,671,486 shares in 2016 and 2015	(138,927)	(138,927)
Total Vicor Corporation stockholders' equity	130,809	135,031
Noncontrolling interest	208	1,054
Total equity	131,017	136,085
Total liabilities and equity	154,067	157,545
Class B Common Stock [Member]
Vicor Corporation stockholders' equity:
Common Stock	118	118
Total equity	118	118
Common Stock [Member]
Vicor Corporation stockholders' equity:
Common Stock	$ 397	$ 395