Restricted net assets (Tables)

3 Months Ended

Mar. 31, 2020

Restricted Net Assets [Abstract]

Schdule of restrictions on net assets

As of March 31, 2020 and December 31, 2019, the Company's consolidated subsidiaries had $20.9 million and $21.1 million, respectively, of restricted net assets. This compares to the Company's consolidated net assets of $167.2 million and $160.2 million as of March 31, 2020 and December 31, 2019, respectively, which consisted of (in thousands):

	March 31, 2020		December 31, 2019
Cash restricted in China as a result of ongoing litigation and unfulfilled government grants	$	10,896	$	10,936
China earnings restricted to fund statutory common reserves in China	9,081		9,240
Loan agreements in Japan requiring local subsidiaries to maintain minimum net asset levels	925		920
Total restricted net assets in the Company's consolidated subsidiaries	$	20,902	$	21,096