Consolidated Statements of Equity - USD ($)	Boyalife Investment Fund II, Inc. [Member] Common Stock [Member]	Boyalife Investment Fund II, Inc. [Member] Additional Paid-in Capital [Member]	Boyalife Investment Fund II, Inc. [Member] Retained Earnings [Member]	Boyalife Investment Fund II, Inc. [Member] AOCI Attributable to Parent [Member]	[1]	Boyalife Investment Fund II, Inc. [Member] Noncontrolling Interest [Member]	Boyalife Investment Fund II, Inc. [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]		Noncontrolling Interest [Member]	Total
Balance (in shares) at Dec. 31, 2018								2,168,337
Balance at Dec. 31, 2018								$ 2,000	$ 235,888,000	$ (227,435,000)	$ (13,000)	[1]	$ (1,711,000)	$ 6,731,000
Stock-based compensation									614,000					614,000
Exercise of pre-funded warrants (in shares)								416,500
Exercise of pre-funded warrants								$ 1,000	41,000			[1]		42,000
Exercise of warrants (in shares)								18,764
Exercise of warrants									112,000			[1]		112,000
Conversion of note payable to stock (in shares)								240,000
Conversion of note payable to stock									432,000					432,000
Reorganization of subsidiary and related change in non-controlling interest									(2,843,000)				2,843,000
Discount due to beneficial conversion features									2,313,000			[1]		2,313,000
Issuance of common stock pre-funded warrants in financing, net of offering cost									756,000					756,000
Foreign currency translation											15,000			15,000
Net loss										(9,497,000)		[1]	(602,000)	(10,099,000)
Balance (in shares) at Dec. 31, 2019								2,843,601
Balance at Dec. 31, 2019								$ 3,000	237,313,000	(236,932,000)	2,000	[1]	530,000	916,000
Stock-based compensation									880,000			[1]		880,000
Exercise of pre-funded warrants (in shares)								324,445
Exercise of pre-funded warrants									32,000			[1]		32,000
Exercise of warrants (in shares)								275,137
Exercise of warrants									1,651,000			[1]		1,651,000
Conversion of note payable to stock (in shares)	1,666,670							204,445
Conversion of note payable to stock	$ 2,000	$ 2,998,000					$ 3,000,000		368,000			[1]		368,000
Discount due to beneficial conversion features									4,981,000			[1]		4,981,000
Issuance of common stock pre-funded warrants in financing, net of offering cost								4,000	10,835,000					10,839,000
Foreign currency translation											14,000	[1]		14,000
Net loss										(16,351,000)		[1]	(460,000)	(16,811,000)
Sale of common stock, net of fees (in shares)								3,620,654
Balance (in shares) at Dec. 31, 2020								8,934,952
Balance at Dec. 31, 2020								$ 9,000	$ 259,058,000	$ (253,283,000)	$ 16,000	[1]	$ 70,000	$ 5,870,000

[1] Accumulated other comprehensive loss.